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 'rfer'

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, >>Next

 Equations/742867: How can I find an ordered pair if the equation is x + y = 6? (4, ), (6, ), (0, )1 solutions Answer 452680 by rfer(12666)   on 2013-04-28 21:49:39 (Show Source): You can put this solution on YOUR website!(4,?) x+y=6 4+y=6 y=6-4 y=2 (4,2)
 Angles/742890: the measure of a angle is 1/3 the measure of its supplement, what is the angle 1 solutions Answer 452679 by rfer(12666)   on 2013-04-28 21:46:27 (Show Source): You can put this solution on YOUR website!x+3x=180 4x=180 x=180/4 x=45
 Coordinate-system/742906: Plot the number 3/2 on a number line1 solutions Answer 452678 by rfer(12666)   on 2013-04-28 21:43:05 (Show Source): You can put this solution on YOUR website!=+1.5
 Polynomials-and-rational-expressions/742913: subtract (5x+2)-(5x+3)= 1 solutions Answer 452677 by rfer(12666)   on 2013-04-28 21:41:54 (Show Source): You can put this solution on YOUR website!5x+2-5x-3=-1
 Polynomials-and-rational-expressions/742916: add (7b+5b^2-3) + (3b^3-5b +8)=1 solutions Answer 452676 by rfer(12666)   on 2013-04-28 21:40:38 (Show Source): You can put this solution on YOUR website!7b+5b^2-3+3b^3-5b+8= 3b^3+5b^2+2b+5
 Polynomials-and-rational-expressions/742918: what is the quotent of (18x'3+12x-3) / 6x'21 solutions Answer 452675 by rfer(12666)   on 2013-04-28 21:38:38 (Show Source): You can put this solution on YOUR website!=3x with R=12x-3
 Radicals/742836: what is radical 5x-4=6 what is x?1 solutions Answer 452641 by rfer(12666)   on 2013-04-28 18:08:16 (Show Source): You can put this solution on YOUR website!5x-4=36 5x=40 x=40/5 x=8
 test/742832: How do I simplify and put these problems in exponential form? 3(ab)^2 (10y^2)^3 1 solutions Answer 452640 by rfer(12666)   on 2013-04-28 18:04:05 (Show Source): You can put this solution on YOUR website!3a^2b^2 1000y^6
 Distributive-associative-commutative-properties/742791: It says to find the quotient. here is the problem. -9x^3+3x^2-15x/-3x1 solutions Answer 452629 by rfer(12666)   on 2013-04-28 16:08:17 (Show Source): You can put this solution on YOUR website!=3x^2-x+5
 test/742510: Greg cement sell for 75 plus 24 for each yard of cement. How many yards of cement can be purchased for 363.1 solutions Answer 452583 by rfer(12666)   on 2013-04-27 20:56:57 (Show Source): You can put this solution on YOUR website!(363-75)/24=12 cu yds
 Equations/742546: Find the slope-intercept equation for the line with the indicated slope and y-intercept Slope6/7; y-intercept 0,-61 solutions Answer 452582 by rfer(12666)   on 2013-04-27 20:54:52 (Show Source): You can put this solution on YOUR website!y=6/7x-6
 Equations/742550: Write a slope-intercept equation of the line whose graph is parallel to y=2x-9 and has the y-intercept 0,4. The line is y=1 solutions Answer 452581 by rfer(12666)   on 2013-04-27 20:53:39 (Show Source): You can put this solution on YOUR website!y=2x+4
 Linear-equations/742584: (-3,-3) m=1/2 Find the equation of the line through the given point with the given slope. This is what I did and is this correct?? y-(-3)=1/2(x-(-3)) y+3=1/2x+6 -3 -3 y=1/2x+31 solutions Answer 452580 by rfer(12666)   on 2013-04-27 20:48:55 (Show Source): You can put this solution on YOUR website!y=mx+b -3=0.5*-3+b -3=-1.5+b -3+1.5=b -1.5=b y=0.5x-1.5
 Travel_Word_Problems/742586: Willie pushed on the cart with 500 newtons of force. Jenny pushed on the other side of the cart. The cart didn't move.How much force did Jenny apply?1 solutions Answer 452579 by rfer(12666)   on 2013-04-27 20:45:24 (Show Source): You can put this solution on YOUR website!500 Newtons
 Points-lines-and-rays/742555: For a 67^0: A. What is the measure of its supplement? B. What is the measure of its complement?1 solutions Answer 452578 by rfer(12666)   on 2013-04-27 20:44:24 (Show Source): You can put this solution on YOUR website!67^0=1 A) 179 degrees B) 89 degrees
 Linear-equations/742249: what is the correct answer of 12-2(6)/1-51 solutions Answer 452391 by rfer(12666)   on 2013-04-26 18:06:02 (Show Source): You can put this solution on YOUR website!12-12/1-5= 12-12-5=-5
 Travel_Word_Problems/742269: what is the rate formula of 175 miles and 6 1/2 hours 1 solutions Answer 452390 by rfer(12666)   on 2013-04-26 18:04:19 (Show Source): You can put this solution on YOUR website!r=D/t
 Equations/741848: Solve 5x + 5 = 2(2x + 5)1 solutions Answer 452169 by rfer(12666)   on 2013-04-25 15:23:45 (Show Source): You can put this solution on YOUR website!5x+5=4x+10 5x-4x=10-5 x=5
 Linear-equations/739823: find the y-intercept y=-9/2x-3/21 solutions Answer 451341 by rfer(12666)   on 2013-04-20 14:07:36 (Show Source): You can put this solution on YOUR website!y int = -3/2 (0,-3/2) or (0,-1.5) which ever is easier
 Average/739674: What is the average for the numbers 95, 95, and 80? 1 solutions Answer 451253 by rfer(12666)   on 2013-04-19 21:23:04 (Show Source): You can put this solution on YOUR website!=90
 Finance/739389: I'm not sure if this goes into the finance section, but here is the problem. Adam buys oranges at the rate of three oranges for \$1. He sells them at a rate of five oranges for \$2. In order to make a profit of at least \$10, what is the minimum number of oranges he must sell? I tried doing proportions but I don't think I did them right.1 solutions Answer 451115 by rfer(12666)   on 2013-04-18 21:32:53 (Show Source): You can put this solution on YOUR website!1/3=0.333 2/5=0.4 0.4-0.333=0.0.67 10/0.67=149.23=150 min
 Numbers_Word_Problems/739408: The sum of two consecutive whole numbers is 57. What is the value of the greater of the two numbers? 1 solutions Answer 451114 by rfer(12666)   on 2013-04-18 21:28:30 (Show Source): You can put this solution on YOUR website!x+x+1=57 2x=56 x=28 x+1=29
 percentage/739400: If the result of increasing a by 300% of a is b, then a is what percent of b? The answer choices are; A) 20% B) 25% C)33 1/3% D)40% E)66 2/3%1 solutions Answer 451113 by rfer(12666)   on 2013-04-18 21:27:00 (Show Source): You can put this solution on YOUR website!c) 33 1/3%
 Numeric_Fractions/739406: 5:27 : : 9 : ?1 solutions Answer 451111 by rfer(12666)   on 2013-04-18 21:25:10 (Show Source): You can put this solution on YOUR website!27*9/5=48.6
 test/739429: The regular price for a record is \$15. Find the discount and the new price if there is a 20% discount.1 solutions Answer 451110 by rfer(12666)   on 2013-04-18 21:22:59 (Show Source): You can put this solution on YOUR website!\$3 15*0.80=\$12
 Permutations/739198: If a= 1.5 what does 4a+5 equal? 1 solutions Answer 451038 by rfer(12666)   on 2013-04-18 13:38:57 (Show Source): You can put this solution on YOUR website!4*1.5+5=11
 test/739167: (5,-2),m=31 solutions Answer 451035 by rfer(12666)   on 2013-04-18 12:39:02 (Show Source): You can put this solution on YOUR website!y=mx+b -2=3*5+b -2=15+b b=-17 - y=3x-17
 Permutations/739196: Use a case 1 case 2 ratio box to solve this problem 5 is to 12 as 20 is to waht number? 1 solutions Answer 451034 by rfer(12666)   on 2013-04-18 12:37:31 (Show Source): You can put this solution on YOUR website!5/12=20/x 5x=240 x=240/5 x=48
 Expressions-with-variables/739195: What is equal to 6-4(x+3)1 solutions Answer 451033 by rfer(12666)   on 2013-04-18 12:36:13 (Show Source): You can put this solution on YOUR website!6-4x-12=-4x-6
 test/739179: If 330=150(2+r), then r =1 solutions Answer 451032 by rfer(12666)   on 2013-04-18 12:35:26 (Show Source): You can put this solution on YOUR website!330=300+150r 30=150r 30/150=r 0.2=r
 Miscellaneous_Word_Problems/739159: SARAH'S INVESTMENT IN STOCK GREW 26% TO \$504. HOW MUCH DID SHE INVEST?1 solutions Answer 451031 by rfer(12666)   on 2013-04-18 12:33:14 (Show Source): You can put this solution on YOUR website!504/1.26=400