Algebra ->  Tutoring on algebra.com -> See tutors' answers!      Log On

 Tutoring Home For Students Tools for Tutors Our Tutors Register Recently Solved
 By Tutor
| By Problem Number |

Tutor:

# Recent problems solved by 'Alan3354'

Jump to solutions: 0..29 , 30..59 , 60..89 , 90..119 , 120..149 , 150..179 , 180..209 , 210..239 , 240..269 , 270..299 , 300..329 , 330..359 , 360..389 , 390..419 , 420..449 , 450..479 , 480..509 , 510..539 , 540..569 , 570..599 , 600..629 , 630..659 , 660..689 , 690..719 , 720..749 , 750..779 , 780..809 , 810..839 , 840..869 , 870..899 , 900..929 , 930..959 , 960..989 , 990..1019 , 1020..1049 , 1050..1079 , 1080..1109 , 1110..1139 , 1140..1169 , 1170..1199 , 1200..1229 , 1230..1259 , 1260..1289 , 1290..1319 , 1320..1349 , 1350..1379 , 1380..1409 , 1410..1439 , 1440..1469 , 1470..1499 , 1500..1529 , 1530..1559 , 1560..1589 , 1590..1619 , 1620..1649 , 1650..1679 , 1680..1709 , 1710..1739 , 1740..1769 , 1770..1799 , 1800..1829 , 1830..1859 , 1860..1889 , 1890..1919 , 1920..1949 , 1950..1979 , 1980..2009 , 2010..2039 , 2040..2069 , 2070..2099 , 2100..2129 , 2130..2159 , 2160..2189 , 2190..2219 , 2220..2249 , 2250..2279 , 2280..2309 , 2310..2339 , 2340..2369 , 2370..2399 , 2400..2429 , 2430..2459 , 2460..2489 , 2490..2519 , 2520..2549 , 2550..2579 , 2580..2609 , 2610..2639 , 2640..2669 , 2670..2699 , 2700..2729 , 2730..2759 , 2760..2789 , 2790..2819 , 2820..2849 , 2850..2879 , 2880..2909 , 2910..2939 , 2940..2969 , 2970..2999 , 3000..3029 , 3030..3059 , 3060..3089 , 3090..3119 , 3120..3149 , 3150..3179 , 3180..3209 , 3210..3239 , 3240..3269 , 3270..3299 , 3300..3329 , 3330..3359 , 3360..3389 , 3390..3419 , 3420..3449 , 3450..3479 , 3480..3509 , 3510..3539 , 3540..3569 , 3570..3599 , 3600..3629 , 3630..3659 , 3660..3689 , 3690..3719 , 3720..3749 , 3750..3779 , 3780..3809 , 3810..3839 , 3840..3869 , 3870..3899 , 3900..3929 , 3930..3959 , 3960..3989 , 3990..4019 , 4020..4049 , 4050..4079 , 4080..4109 , 4110..4139 , 4140..4169 , 4170..4199 , 4200..4229 , 4230..4259 , 4260..4289 , 4290..4319 , 4320..4349 , 4350..4379 , 4380..4409 , 4410..4439 , 4440..4469 , 4470..4499 , 4500..4529 , 4530..4559 , 4560..4589 , 4590..4619 , 4620..4649 , 4650..4679 , 4680..4709 , 4710..4739 , 4740..4769 , 4770..4799 , 4800..4829 , 4830..4859 , 4860..4889 , 4890..4919 , 4920..4949 , 4950..4979 , 4980..5009 , 5010..5039 , 5040..5069 , 5070..5099 , 5100..5129 , 5130..5159 , 5160..5189 , 5190..5219 , 5220..5249 , 5250..5279 , 5280..5309 , 5310..5339 , 5340..5369 , 5370..5399 , 5400..5429 , 5430..5459 , 5460..5489 , 5490..5519 , 5520..5549 , 5550..5579 , 5580..5609 , 5610..5639 , 5640..5669 , 5670..5699 , 5700..5729 , 5730..5759 , 5760..5789 , 5790..5819 , 5820..5849 , 5850..5879 , 5880..5909 , 5910..5939 , 5940..5969 , 5970..5999 , 6000..6029 , 6030..6059 , 6060..6089 , 6090..6119 , 6120..6149 , 6150..6179 , 6180..6209 , 6210..6239 , 6240..6269 , 6270..6299 , 6300..6329 , 6330..6359 , 6360..6389 , 6390..6419 , 6420..6449 , 6450..6479 , 6480..6509 , 6510..6539 , 6540..6569 , 6570..6599 , 6600..6629 , 6630..6659 , 6660..6689 , 6690..6719 , 6720..6749 , 6750..6779 , 6780..6809 , 6810..6839 , 6840..6869 , 6870..6899 , 6900..6929 , 6930..6959 , 6960..6989 , 6990..7019 , 7020..7049 , 7050..7079 , 7080..7109 , 7110..7139 , 7140..7169 , 7170..7199 , 7200..7229 , 7230..7259 , 7260..7289 , 7290..7319 , 7320..7349 , 7350..7379 , 7380..7409 , 7410..7439 , 7440..7469 , 7470..7499 , 7500..7529 , 7530..7559 , 7560..7589 , 7590..7619 , 7620..7649 , 7650..7679 , 7680..7709 , 7710..7739 , 7740..7769 , 7770..7799 , 7800..7829 , 7830..7859 , 7860..7889 , 7890..7919 , 7920..7949 , 7950..7979 , 7980..8009 , 8010..8039 , 8040..8069 , 8070..8099 , 8100..8129 , 8130..8159 , 8160..8189 , 8190..8219 , 8220..8249 , 8250..8279 , 8280..8309 , 8310..8339 , 8340..8369 , 8370..8399 , 8400..8429 , 8430..8459 , 8460..8489 , 8490..8519 , 8520..8549 , 8550..8579 , 8580..8609 , 8610..8639 , 8640..8669 , 8670..8699 , 8700..8729 , 8730..8759 , 8760..8789 , 8790..8819 , 8820..8849 , 8850..8879 , 8880..8909 , 8910..8939 , 8940..8969 , 8970..8999 , 9000..9029 , 9030..9059 , 9060..9089 , 9090..9119 , 9120..9149 , 9150..9179 , 9180..9209 , 9210..9239 , 9240..9269 , 9270..9299 , 9300..9329 , 9330..9359 , 9360..9389 , 9390..9419 , 9420..9449 , 9450..9479 , 9480..9509 , 9510..9539 , 9540..9569 , 9570..9599 , 9600..9629 , 9630..9659 , 9660..9689 , 9690..9719 , 9720..9749 , 9750..9779 , 9780..9809 , 9810..9839 , 9840..9869 , 9870..9899 , 9900..9929 , 9930..9959 , 9960..9989 , 9990..10019 , 10020..10049 , 10050..10079 , 10080..10109 , 10110..10139 , 10140..10169 , 10170..10199 , 10200..10229 , 10230..10259 , 10260..10289 , 10290..10319 , 10320..10349 , 10350..10379 , 10380..10409 , 10410..10439 , 10440..10469 , 10470..10499 , 10500..10529 , 10530..10559 , 10560..10589 , 10590..10619 , 10620..10649 , 10650..10679 , 10680..10709 , 10710..10739 , 10740..10769 , 10770..10799 , 10800..10829 , 10830..10859 , 10860..10889 , 10890..10919 , 10920..10949 , 10950..10979 , 10980..11009 , 11010..11039 , 11040..11069 , 11070..11099 , 11100..11129 , 11130..11159 , 11160..11189 , 11190..11219 , 11220..11249 , 11250..11279 , 11280..11309 , 11310..11339 , 11340..11369 , 11370..11399 , 11400..11429 , 11430..11459 , 11460..11489 , 11490..11519 , 11520..11549 , 11550..11579 , 11580..11609 , 11610..11639 , 11640..11669 , 11670..11699 , 11700..11729 , 11730..11759 , 11760..11789 , 11790..11819 , 11820..11849 , 11850..11879 , 11880..11909 , 11910..11939 , 11940..11969 , 11970..11999 , 12000..12029 , 12030..12059 , 12060..12089 , 12090..12119 , 12120..12149 , 12150..12179 , 12180..12209 , 12210..12239 , 12240..12269 , 12270..12299 , 12300..12329 , 12330..12359 , 12360..12389 , 12390..12419 , 12420..12449 , 12450..12479 , 12480..12509 , 12510..12539 , 12540..12569 , 12570..12599 , 12600..12629 , 12630..12659 , 12660..12689 , 12690..12719 , 12720..12749 , 12750..12779 , 12780..12809 , 12810..12839 , 12840..12869 , 12870..12899 , 12900..12929 , 12930..12959 , 12960..12989 , 12990..13019 , 13020..13049 , 13050..13079 , 13080..13109 , 13110..13139 , 13140..13169 , 13170..13199 , 13200..13229 , 13230..13259 , 13260..13289 , 13290..13319 , 13320..13349 , 13350..13379 , 13380..13409 , 13410..13439 , 13440..13469 , 13470..13499 , 13500..13529 , 13530..13559 , 13560..13589 , 13590..13619 , 13620..13649 , 13650..13679 , 13680..13709 , 13710..13739 , 13740..13769 , 13770..13799 , 13800..13829 , 13830..13859 , 13860..13889 , 13890..13919 , 13920..13949 , 13950..13979 , 13980..14009 , 14010..14039 , 14040..14069 , 14070..14099 , 14100..14129 , 14130..14159 , 14160..14189 , 14190..14219 , 14220..14249 , 14250..14279 , 14280..14309 , 14310..14339 , 14340..14369 , 14370..14399 , 14400..14429 , 14430..14459 , 14460..14489 , 14490..14519 , 14520..14549 , 14550..14579 , 14580..14609 , 14610..14639 , 14640..14669 , 14670..14699 , 14700..14729 , 14730..14759 , 14760..14789 , 14790..14819 , 14820..14849 , 14850..14879 , 14880..14909 , 14910..14939 , 14940..14969 , 14970..14999 , 15000..15029 , 15030..15059 , 15060..15089 , 15090..15119 , 15120..15149 , 15150..15179 , 15180..15209 , 15210..15239 , 15240..15269 , 15270..15299 , 15300..15329 , 15330..15359 , 15360..15389 , 15390..15419 , 15420..15449 , 15450..15479 , 15480..15509 , 15510..15539 , 15540..15569 , 15570..15599 , 15600..15629 , 15630..15659 , 15660..15689 , 15690..15719 , 15720..15749 , 15750..15779 , 15780..15809 , 15810..15839 , 15840..15869 , 15870..15899 , 15900..15929 , 15930..15959 , 15960..15989 , 15990..16019 , 16020..16049 , 16050..16079 , 16080..16109 , 16110..16139 , 16140..16169 , 16170..16199 , 16200..16229 , 16230..16259 , 16260..16289 , 16290..16319 , 16320..16349 , 16350..16379 , 16380..16409 , 16410..16439 , 16440..16469 , 16470..16499 , 16500..16529 , 16530..16559 , 16560..16589 , 16590..16619 , 16620..16649 , 16650..16679 , 16680..16709 , 16710..16739 , 16740..16769 , 16770..16799 , 16800..16829 , 16830..16859 , 16860..16889 , 16890..16919 , 16920..16949 , 16950..16979 , 16980..17009 , 17010..17039 , 17040..17069 , 17070..17099 , 17100..17129 , 17130..17159 , 17160..17189 , 17190..17219 , 17220..17249 , 17250..17279 , 17280..17309 , 17310..17339 , 17340..17369 , 17370..17399 , 17400..17429 , 17430..17459 , 17460..17489 , 17490..17519 , 17520..17549 , 17550..17579 , 17580..17609 , 17610..17639 , 17640..17669 , 17670..17699 , 17700..17729 , 17730..17759 , 17760..17789 , 17790..17819 , 17820..17849 , 17850..17879 , 17880..17909 , 17910..17939 , 17940..17969 , 17970..17999 , 18000..18029 , 18030..18059 , 18060..18089 , 18090..18119 , 18120..18149 , 18150..18179 , 18180..18209 , 18210..18239 , 18240..18269 , 18270..18299 , 18300..18329 , 18330..18359 , 18360..18389 , 18390..18419 , 18420..18449 , 18450..18479 , 18480..18509 , 18510..18539 , 18540..18569 , 18570..18599 , 18600..18629 , 18630..18659 , 18660..18689 , 18690..18719 , 18720..18749 , 18750..18779 , 18780..18809 , 18810..18839 , 18840..18869 , 18870..18899 , 18900..18929 , 18930..18959 , 18960..18989 , 18990..19019 , 19020..19049 , 19050..19079 , 19080..19109 , 19110..19139 , 19140..19169 , 19170..19199 , 19200..19229 , 19230..19259 , 19260..19289 , 19290..19319 , 19320..19349 , 19350..19379 , 19380..19409 , 19410..19439 , 19440..19469 , 19470..19499 , 19500..19529 , 19530..19559 , 19560..19589 , 19590..19619 , 19620..19649 , 19650..19679 , 19680..19709 , 19710..19739 , 19740..19769 , 19770..19799 , 19800..19829 , 19830..19859 , 19860..19889 , 19890..19919 , 19920..19949 , 19950..19979 , 19980..20009 , 20010..20039 , 20040..20069 , 20070..20099 , 20100..20129 , 20130..20159 , 20160..20189 , 20190..20219 , 20220..20249 , 20250..20279 , 20280..20309 , 20310..20339 , 20340..20369 , 20370..20399 , 20400..20429 , 20430..20459 , 20460..20489 , 20490..20519 , 20520..20549 , 20550..20579 , 20580..20609 , 20610..20639 , 20640..20669 , 20670..20699 , 20700..20729 , 20730..20759 , 20760..20789 , 20790..20819 , 20820..20849 , 20850..20879 , 20880..20909 , 20910..20939 , 20940..20969 , 20970..20999 , 21000..21029 , 21030..21059 , 21060..21089 , 21090..21119 , 21120..21149 , 21150..21179 , 21180..21209 , 21210..21239 , 21240..21269 , 21270..21299 , 21300..21329 , 21330..21359 , 21360..21389 , 21390..21419 , 21420..21449 , 21450..21479 , 21480..21509 , 21510..21539 , 21540..21569 , 21570..21599 , 21600..21629 , 21630..21659 , 21660..21689 , 21690..21719 , 21720..21749 , 21750..21779 , 21780..21809 , 21810..21839 , 21840..21869 , 21870..21899 , 21900..21929 , 21930..21959 , 21960..21989 , 21990..22019 , 22020..22049 , 22050..22079 , 22080..22109 , 22110..22139 , 22140..22169 , 22170..22199 , 22200..22229 , 22230..22259 , 22260..22289 , 22290..22319 , 22320..22349 , 22350..22379 , 22380..22409 , 22410..22439 , 22440..22469 , 22470..22499 , 22500..22529 , 22530..22559 , 22560..22589 , 22590..22619 , 22620..22649 , 22650..22679 , 22680..22709 , 22710..22739 , 22740..22769 , 22770..22799 , 22800..22829 , 22830..22859 , 22860..22889 , 22890..22919 , 22920..22949 , 22950..22979 , 22980..23009 , 23010..23039 , 23040..23069 , 23070..23099 , 23100..23129 , 23130..23159 , 23160..23189 , 23190..23219 , 23220..23249 , 23250..23279 , 23280..23309 , 23310..23339 , 23340..23369 , 23370..23399 , 23400..23429 , 23430..23459 , 23460..23489 , 23490..23519 , 23520..23549 , 23550..23579 , 23580..23609 , 23610..23639 , 23640..23669 , 23670..23699 , 23700..23729 , 23730..23759 , 23760..23789 , 23790..23819 , 23820..23849 , 23850..23879 , 23880..23909 , 23910..23939 , 23940..23969 , 23970..23999 , 24000..24029 , 24030..24059 , 24060..24089 , 24090..24119 , 24120..24149 , 24150..24179 , 24180..24209 , 24210..24239 , 24240..24269 , 24270..24299 , 24300..24329 , 24330..24359 , 24360..24389 , 24390..24419 , 24420..24449 , 24450..24479 , 24480..24509 , 24510..24539 , 24540..24569 , 24570..24599 , 24600..24629 , 24630..24659 , 24660..24689 , 24690..24719 , 24720..24749 , 24750..24779 , 24780..24809 , 24810..24839 , 24840..24869 , 24870..24899 , 24900..24929 , 24930..24959 , 24960..24989 , 24990..25019 , 25020..25049 , 25050..25079 , 25080..25109 , 25110..25139 , 25140..25169 , 25170..25199 , 25200..25229 , 25230..25259 , 25260..25289 , 25290..25319 , 25320..25349 , 25350..25379 , 25380..25409 , 25410..25439 , 25440..25469 , 25470..25499 , 25500..25529 , 25530..25559 , 25560..25589 , 25590..25619 , 25620..25649 , 25650..25679 , 25680..25709 , 25710..25739 , 25740..25769 , 25770..25799 , 25800..25829 , 25830..25859 , 25860..25889 , 25890..25919 , 25920..25949 , 25950..25979 , 25980..26009 , 26010..26039 , 26040..26069 , 26070..26099 , 26100..26129 , 26130..26159 , 26160..26189 , 26190..26219 , 26220..26249 , 26250..26279 , 26280..26309 , 26310..26339 , 26340..26369 , 26370..26399 , 26400..26429 , 26430..26459 , 26460..26489 , 26490..26519 , 26520..26549 , 26550..26579 , 26580..26609 , 26610..26639 , 26640..26669 , 26670..26699 , 26700..26729 , 26730..26759 , 26760..26789 , 26790..26819 , 26820..26849 , 26850..26879 , 26880..26909 , 26910..26939 , 26940..26969 , 26970..26999 , 27000..27029 , 27030..27059 , 27060..27089 , 27090..27119 , 27120..27149 , 27150..27179 , 27180..27209 , 27210..27239 , 27240..27269 , 27270..27299 , 27300..27329 , 27330..27359 , 27360..27389 , 27390..27419 , 27420..27449 , 27450..27479 , 27480..27509 , 27510..27539 , 27540..27569 , 27570..27599 , 27600..27629 , 27630..27659 , 27660..27689 , 27690..27719 , 27720..27749 , 27750..27779 , 27780..27809 , 27810..27839 , 27840..27869 , 27870..27899 , 27900..27929 , 27930..27959 , 27960..27989 , 27990..28019 , 28020..28049 , 28050..28079 , 28080..28109 , 28110..28139 , 28140..28169 , 28170..28199 , 28200..28229 , 28230..28259 , 28260..28289 , 28290..28319 , 28320..28349 , 28350..28379 , 28380..28409 , 28410..28439 , 28440..28469 , 28470..28499 , 28500..28529 , 28530..28559 , 28560..28589 , 28590..28619 , 28620..28649 , 28650..28679 , 28680..28709 , 28710..28739 , 28740..28769 , 28770..28799 , 28800..28829 , 28830..28859 , 28860..28889 , 28890..28919 , 28920..28949 , 28950..28979 , 28980..29009 , 29010..29039 , 29040..29069 , 29070..29099 , 29100..29129 , 29130..29159 , 29160..29189 , 29190..29219 , 29220..29249 , 29250..29279 , 29280..29309 , 29310..29339 , 29340..29369 , 29370..29399 , 29400..29429 , 29430..29459 , 29460..29489 , 29490..29519 , 29520..29549 , 29550..29579 , 29580..29609 , 29610..29639 , 29640..29669 , 29670..29699 , 29700..29729 , 29730..29759 , 29760..29789 , 29790..29819 , 29820..29849 , 29850..29879 , 29880..29909 , 29910..29939 , 29940..29969 , 29970..29999 , 30000..30029 , 30030..30059 , 30060..30089 , 30090..30119 , 30120..30149 , 30150..30179 , 30180..30209 , 30210..30239 , 30240..30269 , 30270..30299 , 30300..30329 , 30330..30359 , 30360..30389 , 30390..30419 , 30420..30449 , 30450..30479 , 30480..30509 , 30510..30539 , 30540..30569 , 30570..30599 , 30600..30629 , 30630..30659 , 30660..30689 , 30690..30719 , 30720..30749 , 30750..30779 , 30780..30809 , 30810..30839 , 30840..30869 , 30870..30899 , 30900..30929 , 30930..30959 , 30960..30989, >>Next

 Age_Word_Problems/264924: A 27-year old mother has a 5-year old daughter. In how many years will the mother be three times as old as her daughter? A.4 B.6 C.9 D. 15 E.None of these 1 solutions Answer 194917 by Alan3354(30993)   on 2010-02-03 08:27:36 (Show Source): You can put this solution on YOUR website!The age difference is 22. The integers will be 3:1, so 22 is 2 times the age of the daughter, --> the daughter will be 11. ----------------- -->B, in 6 years.
 Equations/264773: Find three consecutive odd integers whose sums if 141. use the 5 step method.1 solutions Answer 194859 by Alan3354(30993)   on 2010-02-02 21:25:11 (Show Source): You can put this solution on YOUR website!141/3 = 47, which is the middle number. --> 45, 47, 49 I don't know what the 5 steps are, but they don't seem to be necessary.
 Travel_Word_Problems/264770: At the instant the traffic light turns green, an automobile that has been waiting at an intersection starts ahead with a constant acceleration of 2.80 m/s^2. At the same instant, a truck, traveling with a constant speed of 14.7 m/s, overtakes and passes the automobile. How far beyond its starting point does the automobile overtake the truck? How fast is the automobile traveling when it overtakes the truck?1 solutions Answer 194857 by Alan3354(30993)   on 2010-02-02 21:19:34 (Show Source): You can put this solution on YOUR website!At the instant the traffic light turns green, an automobile that has been waiting at an intersection starts ahead with a constant acceleration of 2.80 m/s^2. At the same instant, a truck, traveling with a constant speed of 14.7 m/s, overtakes and passes the automobile. How far beyond its starting point does the automobile overtake the truck? How fast is the automobile traveling when it overtakes the truck? ------------------------ For the car, s = (at^2)/2 = 3.92t^2 For the truck, s = 14.7t -------------- When the distances are equal 14.7t = 3.92t^2 3.92t^t - 14.7t = 0 t = 0 (at the light) t = 14.7/3.92 = 3.75 seconds At 3.75 seconds, the auto catches up to the truck. ------------------- s = 14.7*3.75 = 55.125 meters from the light. -------- Auto speed = 3.92*3.75 = 14.7 m/sec when it overtakes the truck
 Problems-with-consecutive-odd-even-integers/264682: the sum of two consecutive integers is 19. what are the integers?1 solutions Answer 194833 by Alan3354(30993)   on 2010-02-02 20:18:03 (Show Source): You can put this solution on YOUR website!19/2 = 9.5, in the middle Can you find it from that?
 Surface-area/264703: Draw the net and find the total surface area of the cylinder 1 solutions Answer 194830 by Alan3354(30993)   on 2010-02-02 20:16:14 (Show Source): You can put this solution on YOUR website!What net? What cylinder?
 Numbers_Word_Problems/264707: 5 times the sum of a number and 7 is 301 solutions Answer 194828 by Alan3354(30993)   on 2010-02-02 20:14:55 (Show Source): You can put this solution on YOUR website!Is it 5n + 7 = 30 ? Or 5*(n+7) = 30 ?
 Pythagorean-theorem/264720: Find the side or a triangle with a hypotenuse of 11, and one side of 9.1 solutions Answer 194827 by Alan3354(30993)   on 2010-02-02 20:13:29 (Show Source): You can put this solution on YOUR website!Not enough info. To "solve" a triangle, at least 3 elements have to be given, and at least one of them a side.
 Radicals/264666: Please show how to work out: 6 the sq root of 20 plus 8 the sq root of 5 minus 5 the sq root of 451 solutions Answer 194824 by Alan3354(30993)   on 2010-02-02 20:01:18 (Show Source): You can put this solution on YOUR website! -------------------------------- = =
 Linear-systems/264663: Solve each System Of linear equations. {y=2x-3} {y-2x= -3} we are solving Special systems. 1 solutions Answer 194822 by Alan3354(30993)   on 2010-02-02 19:57:41 (Show Source): You can put this solution on YOUR website!That's the same eqn twice --> infinite solutions. No unique solution.
 Linear-systems/264708: I can't figure out how to solve this word problem: Flying to Kampala with a tailwind a plane averaged 158 km/h. On the return trip only averaged 112km/h while flying back into the same wind. Find the speed of the wind and the speed of the plane in still air.1 solutions Answer 194821 by Alan3354(30993)   on 2010-02-02 19:52:13 (Show Source): You can put this solution on YOUR website!The "speed in still air" is called the airspeed. It's the average of the 2 speeds given, which are called groundspeeds. ------------- Once you find the airspeed, the windspeed is the difference between the airspeed and the groundspeed. ------------------ Airplanes don't use km/hr, they use knots. 1 knot = 1 nautical mile per hour.
 Quadratic-relations-and-conic-sections/264712: What is the equation for 16x^2 + 4y^2=64 1 solutions Answer 194820 by Alan3354(30993)   on 2010-02-02 19:49:13 (Show Source): You can put this solution on YOUR website!That is an equation ??? You can divide by 4 4x^2 + y^2 = 16
 Linear_Equations_And_Systems_Word_Problems/264633: solve this problem using a concrete, hands-on method? and using an algebraic method? and create a word problem for the linear equations? x+y=15 3x+3y=45 1 solutions Answer 194791 by Alan3354(30993)   on 2010-02-02 17:13:00 (Show Source): You can put this solution on YOUR website!Maybe, but this is the same equation twice. The 2nd is 3x the 1st.
 Numbers_Word_Problems/264630: the sum of two consecutive integers is 89. Find the largest of these integers1 solutions Answer 194789 by Alan3354(30993)   on 2010-02-02 17:11:56 (Show Source): You can put this solution on YOUR website!89/2 = 44.5 Can you take it from there?
 Angles/264574: solve for x m of angle aob=28, m of angle boc =3x-2, m of angle aod=6x1 solutions Answer 194761 by Alan3354(30993)   on 2010-02-02 15:48:42 (Show Source): You can put this solution on YOUR website!How many angles are there? I see a, b, c, d and o Is this a polygon?
 Numbers_Word_Problems/264583: the sum of three consecutive odd integers is 561. Find the numbers.1 solutions Answer 194759 by Alan3354(30993)   on 2010-02-02 15:45:30 (Show Source): You can put this solution on YOUR website!561/3 = 187 That's the middle number.
 Quadratic-relations-and-conic-sections/264562: if a right circular cone intersects a plane that runs perpendicular to the cone's axis (but does not pass through its vertex) what will the curve be?1 solutions Answer 194757 by Alan3354(30993)   on 2010-02-02 15:01:40 (Show Source): You can put this solution on YOUR website!A circle. ----------- BTW, it should say normal to the plane, not perpendicular.
 Circles/264554: the line y=0 is a tangent to the circle (x-8)^2 + (y-a)^2=16. find the value of a. thank you so much!!1 solutions Answer 194756 by Alan3354(30993)   on 2010-02-02 15:00:22 (Show Source): You can put this solution on YOUR website!the line y=0 is a tangent to the circle (x-8)^2 + (y-a)^2=16. find the value of a. ----------------------- y=0 is the x-axis. The radius of the circle is 4 (the square root of 16). The center has to be 4 units from the x-axis, so a = 4 or a = -4
 Exponents-negative-and-fractional/264450: What is the equation using factoring techniques. (x+5)^2-16=01 solutions Answer 194755 by Alan3354(30993)   on 2010-02-02 14:45:32 (Show Source): You can put this solution on YOUR website!The equation is (x+5)^2-16=0 -------------- If you want to solve for x by factoring: It's a difference of 2 squares, (x+5)^2 and 4^2 (x+9)*(x+1) = 0 x = -9 x = -1
 Linear-equations/264551: 4x+y=121 solutions Answer 194754 by Alan3354(30993)   on 2010-02-02 14:35:13 (Show Source): You can put this solution on YOUR website!Do you have a question?
 Circles/264546: the line y=2x-2 meets the circle (x-2)^2 + (y-2)^2 =20 at A and B. coordinates of A and B are, (0,-2) and (4,6). show that AB is a diameter of the circle. thank you would be so helpful if you could help, showing how you got the answer! thankyou1 solutions Answer 194753 by Alan3354(30993)   on 2010-02-02 14:34:43 (Show Source): You can put this solution on YOUR website!If you accept that they intersect at A and B, then all you need to show is that the distance from A to B is the diameter. so --------------- The square of the distance from A to B is = = 80 ------ It's the same length as the diameter, so it's thru the center of the circle. --------------- It was stated that A and B are on the circle and the line, so no proof of that was done.
 Miscellaneous_Word_Problems/264494: please tell me if this is correct. solve the proportion:2/11= 24/3x-4 i have 66 is this correct?1 solutions Answer 194751 by Alan3354(30993)   on 2010-02-02 14:26:58 (Show Source): You can put this solution on YOUR website!solve the proportion:2/11= 24/3x-4 Cross multiply 2(3x-4) = 11*24 6x-8 = 264 6x = 272 x = 136/3
 Graphs/264439: x+4=6 4x-y=41 solutions Answer 194749 by Alan3354(30993)   on 2010-02-02 14:18:05 (Show Source): You can put this solution on YOUR website! x+4=6 4x-y=4 ----------- x+4 = 6 x = 2 ------ 4*2-y = 4 y = 4
 Equations/264528: A mortar shell is s feet above the ground after t seconds, where s = f(t) = -16t2 + 512t + 64. Find the height of the shell 24 seconds after it is fired. (Simplify the answer as much as possible.) s= ? ft.1 solutions Answer 194747 by Alan3354(30993)   on 2010-02-02 14:07:58 (Show Source): You can put this solution on YOUR website!s = f(t) = -16t2 + 512t + 64 ------------ Sub 24 for t s = -16*24^2 + 512*24 + 64 Add those up.
 Circles/264535: the line y=2x-8 meets the coordinate axes at A and B. the line AB is a diameter of the circle. find the equation of the line. please may you explain how you get to the answer aswell, thankyou!1 solutions Answer 194745 by Alan3354(30993)   on 2010-02-02 14:03:02 (Show Source): You can put this solution on YOUR website!the line y=2x-8 meets the coordinate axes at A and B. the line AB is a diameter of the circle. find the equation of the line. --------------- The line crosses the x-axis at y= 0, --> (4,0). The line crosses the y-axis at x-0, --> (0,-8) Those are the 2 points. ----------------- The midpoint is the center of the circle. To find the midpoint, get the average of x and y separately. x: (0+4)/2 = 2 y: (0-8)/2 = -4 --> M (2,-4) ---------- The distance from M to A or B is the radius. -------------------- -->
 Probability-and-statistics/264537: How do you estimate the probability of success if a single piece of candy is drawn from a bag at random?1 solutions Answer 194743 by Alan3354(30993)   on 2010-02-02 13:53:41 (Show Source): You can put this solution on YOUR website!It depends on your definition of success.
 Mixture_Word_Problems/264470: A coffee shop mixes Brazilian coffee worth \$5 per kilogram with Turkish coffee worth \$8 per kilogram. The mixture is to sell for \$7 per kilogram. How much of the Turkish coffee should be used to make 300 kg of the mixture?1 solutions Answer 194703 by Alan3354(30993)   on 2010-02-02 12:03:58 (Show Source): You can put this solution on YOUR website!A coffee shop mixes Brazilian coffee worth \$5 per kilogram with Turkish coffee worth \$8 per kilogram. The mixture is to sell for \$7 per kilogram. How much of the Turkish coffee should be used to make 300 kg of the mixture? -------------- B = amount of Brazilian coffee 5B + 8(300-B) = 7*300 5B + 2400 - 8B = 2100 B = 100 kg of Brazilian --> 200 kg of Turkish
 Linear-equations/264471: What is y=5x+4, (0,0) 1 solutions Answer 194699 by Alan3354(30993)   on 2010-02-02 12:00:14 (Show Source): You can put this solution on YOUR website!It's a straight line, and a point.
 Polynomials-and-rational-expressions/264467: Simplify: sqrt(12)sqrt(15)1 solutions Answer 194697 by Alan3354(30993)   on 2010-02-02 11:59:35 (Show Source): You can put this solution on YOUR website! = = =
 Travel_Word_Problems/264448: On a distance problem... an answer goes from 2/3 hours to 40 minutes. This is for the final answer. How do they get from 2/3 to 40? 1 solutions Answer 194687 by Alan3354(30993)   on 2010-02-02 11:25:26 (Show Source): You can put this solution on YOUR website!1 hour = 60 minutes 2/3 hours = 40 minutes
 Linear-systems/264432: how do i slove this system 3x+5y=-3 10y-2z=2 x=-z1 solutions Answer 194686 by Alan3354(30993)   on 2010-02-02 11:12:52 (Show Source): You can put this solution on YOUR website!how do i slove this system 3x+5y=-3 10y-2z=2 x=-z ------------ Sub -x for z in the 2nd eqn, then it's a 2 eqn system. 3x+5y=-3 --> 6x+10y=-6 10y+2x=2 -------- 6x+10y=-6 2x+10y=2 -------- Subtract 4x = -8 -------- Take it from there.