Questions on Algebra: Equations answered by real tutors!

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Question 114624: I keep getting the wrong answer for this equation. I was wondering what the answer was to see if maybe the book was wrong. I keep getting 1/2 and the book writes 2.
7P-2(3-4P)=12P-(P+4)
Click here to see answer by MathLover1(6812)

Question 114610: Rewrite the equation –8x – 5y = –45 as a function of x.
Click here to see answer by edjones(7569)

Question 114594: Solve the porportion

12. 42/10 = 21/y
Any help with this equation would be Greatly appreciated.
Click here to see answer by checkley71(8403)

Question 114597: Solve the porportion
15. 27/45 = z/15
Any help with this equation would be Greatly appreciated.
Click here to see answer by jim_thompson5910(28715)

Question 114595: Solve the porportion
13. 12/54 = 8/w
Any help with this equation would be Greatly appreciated.
Click here to see answer by jim_thompson5910(28715)

Question 114669:
3x-5(3x-7)=2(x+9)+45
Click here to see answer by stanbon(57967)

Question 114670: The length of a rectangular playing field is 5 feet less than twice its width. If the perimeter of the playing field is 230 feet, find the length and width of the field.
Click here to see answer by stanbon(57967)

Question 114675: Marina leaves home at 9AM, bicycling at a rate at 24 mi/h. Two hours later, John leaves driving at the rate of 48 mi/h. At what time will John catch up with Marina?
Click here to see answer by stanbon(57967)

Question 114674:
A bus leaves a station at 1 PM,traveling west at an average rate of 44mi/hour. One hour later a second bus leaves the station, traveling east at a rate of 48 mi/h. At what time will the two buses be 274 miles apart?
Click here to see answer by stanbon(57967)

Question 114680: 2(x-2)=x+3
Click here to see answer by jim_thompson5910(28715)

Question 114668: 2(x-3)-3(x+5)=3(x-2)-7
Click here to see answer by jim_thompson5910(28715)

Question 114660: write an algebraic expression for "the number of days in x weeks
Click here to see answer by stanbon(57967)

Question 114671: A bicyclist rode into the county for 5 hours. In returning her speed was 5mi/h faster and her trip took 4 hours. What was her speed each way?
Click here to see answer by edjones(7569)

Question 114643: Hi All, I just wanted to thank everyone for your help you have given me these last few weeks. I really appreciate it you have also taught me how to do alot of things that my books could not explain to me, but you all explained things great!! Thanks again, good luck!!
Debbie
Click here to see answer by edjones(7569)

Question 113876: Fifteen years from now Darren will be four times as old as he was three years ago. How old is Darren now?
Click here to see answer by BurningFlame_marc(77)

Question 113737: Find the unit rate.
3.186 words/3min
Any help with this equation would be Greatly appreciated.

Click here to see answer by BurningFlame_marc(77)

Question 113362: Find the products.
a(a+5)(a-5)
Click here to see answer by HyperBrain(694)

Question 113330: Do you find any striking difference between the graphical representation of quadratic equations and linear equations? Explain the differences
Click here to see answer by HyperBrain(694)

Question 112493: Solve the equation.
47.-13/20p = -1/5
Any help with this equation would be Greatly appreciated.
Click here to see answer by HyperBrain(694)

Question 112492: Solve the equation.
46. 3/4w = -1/2
Any help with this equation would be Greatly appreciated.
Click here to see answer by HyperBrain(694)

Question 112491: Solve the equation.
45. -8/17v = 16
Any help with this equation would be Greatly appreciated.
Click here to see answer by HyperBrain(694)

Question 114789: How do I solve this problem? x(3x + 1) (x + 1) = 0
Click here to see answer by Fombitz(13828)

Question 114791: I was having some problems with this equation and know the answer is 57.14, but can't seem to get that answer. Could somebody please walk me through this?

100p - 4000
------------ = .3
100p
Click here to see answer by Fombitz(13828)

Question 114852: A survey of 400 people found that 66 were left handed. What percent of those surveyed were left handed?
Click here to see answer by checkley71(8403)

Question 114853: The electricity cost of a business decreased from $12,000 one year to $10,920 the next. What is the rate of the decrease?
Click here to see answer by checkley71(8403)

Question 114871: Sam must have an average of 70 or more in his summer course to obtain a grade of C. Her first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C.
Click here to see answer by solver91311(17077)

Question 114874: The cost of a long distance telephone call is $0.36 for the first minute and $0.21 for each additional or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $3.
Click here to see answer by checkley71(8403)

Question 114870:

2 times a number, increased by 28, is less than or equal to 6 times that number
Click here to see answer by checkley71(8403)

Question 114935: Find the reciprocal of (-1/5) (15). This is my last question. Reciprocal?? How do I figure that out i have no clue.
Click here to see answer by jim_thompson5910(28715)

Question 114933: Multiply (4)(-3/2)
The -3/2 have the longated parenthesis, I am still not sure what I am supposed to do when they are the longer kind can someone help please?
Click here to see answer by jim_thompson5910(28715)

Question 114932: ((-6.9+7.7)/-2 )+1
OK this one I am totally LOST. I do not no what any of this means what is the (( and the /-2 mean?? I cant even find this in my textbook. Can someone please explain to me how this problem is actually work out? Thank you much.
Click here to see answer by jim_thompson5910(28715)

Question 114943: Use calculator to find real zero's of f(x)= x^3 = 6x^2 - 10
Click here to see answer by jim_thompson5910(28715)

Question 114924: Which of the following numbers are integers?
3, 2/3, -3, 101.1, -5/7
Please help me with this one! Not sure about this at all either.
Ans: A) 3 and -3 B) 2/3 and -5/7 C) 101.1 and 3 D) 101.1

Click here to see answer by bucky(2189)

Question 114920: 2a-4=13(a-5)
I cant figure out this problem. It has a fraction on the right hand side but dont know how to write it.
Click here to see answer by HyperBrain(694)

Question 113382: Simplify the complex fraction.
4+2/x
over
x/4+1/8
Click here to see answer by HyperBrain(694)

Question 114983: x=3y+7
x+y=-5
Could someone show me step by step. I am not clear on how to do this yet.
Click here to see answer by elima(1433)

Question 115042: Solve the poportion
17. 9/8 = p/48
Any help with this problem would be Greatly appreciated.
Click here to see answer by jim_thompson5910(28715)

Question 115042: Solve the poportion
17. 9/8 = p/48
Any help with this problem would be Greatly appreciated.
Click here to see answer by MathLover1(6812)

Question 115043: Solve the proportion
18. You are reading a book. It took you 4 days to read the first 104 pages. If you continue to read at the same rate each day, how many days will it take you to read the rmaining 468 pages?
Any help with this problem would be Greatly appreciated.
Click here to see answer by jim_thompson5910(28715)

Question 115013: If the total bill at a restaurant, including a 15% tip is $65.32, what was the cost of the meal alone?
Click here to see answer by Fombitz(13828)

Question 115007: Given f(x)=3x+3, find F(a+1)
Click here to see answer by Fombitz(13828)

Question 115014: Solve and graph.
7(x-3)75x-14
Click here to see answer by Fombitz(13828)

Question 114923:
Place the following set of numbers in ascending order.
-2/5, 1/6, 7/8, -5/9, 3/4
Please help with this. -5/9, -2/5, 1/6, 3/4, 7/8 ? Am I even at all close to being right?
Click here to see answer by scott8148(6628)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965