Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 117616:
the length of a rectangular playing field is 5ft less than twice its width. if the perimeter of the playing field is 230ft. find the lenght and width of the field.
Click here to see answer by checkley71(8403)

Question 117617: A bicyclist rode into the country for 5h. In returning, her speed was 5mi/h faster and the trip took 4h. what was her speed each way?
Click here to see answer by ankor@dixie-net.com(22740)

Question 117626: write an equation of this line using slope intercept form:
a.) passing through the points (-2,3)(1,3)
b.) passing through the point(3,1) and parallel to the line y=1/3x-2
c.) passing through the point (3,1)and perpendicular to the line y=1/3x-2
Click here to see answer by jim_thompson5910(35256)

Question 117706: please solve this equation
Click here to see answer by edjones(8007)

Question 117705: convert quadratic polynomial y(x)=x^2-6x+7 into vertex form [completeting full sqaure];find Xv,Yv, y-intercept, x-intercept and graph it.
Click here to see answer by josmiceli(19441)

Question 117734: I realy need help with this problem:
4x-2x+4=x+10
don't understand this at all
Click here to see answer by stanbon(75887)

Question 117702: If amount of money on your savings account can be represented by formula: P(t)=10,000(1.02)^4t where t= number of years, what is the principal, what are terms of compounding( annual, semiannual,etc), what is the annual interest rate? How much money will you have in 5 years?
Click here to see answer by josmiceli(19441)

Question 117703: Find equation of an exponential curve passing through the given pair of points and graph these exponents. Is there any other exponent of the same kind passing through these two points?
A.)(2,12)and(5,96)
B.)(-1,-2/3)and(3,-54)
Click here to see answer by Edwin McCravy(20055)

Question 117805: Find the least common multiple of 14, 21, and 35
a) 70 b) 10,290 c) 42 d) 210
Thank you for your help.
Click here to see answer by jim_thompson5910(35256)

Question 117831: Solve the equation.
7/x - 1/x-3 = 9/x squared-3x

Click here to see answer by jim_thompson5910(35256)

Question 117846: A number minus 3 times a number is 52.
Click here to see answer by stanbon(75887)

Question 117849: Hello out there,I need some help with some tough problems,the first one is,Find the LCM for x^2+3x+2 and x^2+5x+6.The next one is,Find the LCD for 3/w and 4/w^2.The third one is,Simplify:3/x+x+3/y.And the last one is,Simplify:4y/y+2+-y/y+2.Thanks to whoever can help.
Click here to see answer by stanbon(75887)

Question 117879: Complete the statement
35 gal = _____L
a) 1,330
b) 9.21
c) 140
d) 133
Click here to see answer by stanbon(75887)

Question 117913: show the equations or inequalities using variables.
translate the following statement into an algebraic equation. Let x represent the number.
Given:
x= a number
Less than mean subtraction...so, 9 less than a number means you are taking 9 from the number to get:
x-9
'Is' means equal to..so, (x-9) equals 15:
x-9=15
Hope this helps.
misscrt
9 less than a number is 15
Click here to see answer by misscrt(37)

Question 117832: Please consider the dependency of the variables through this notation. What are the major differences between "y" and "f(x)"? Explain.

Click here to see answer by misscrt(37)

Question 118018: Hello out there,I need some help with some problems,the first one is,Solve:3y/2=7+y/4.The next one is,Find the product:8a/a+7 times 2a+14/16a.The third one is,Find the quotient:b^2/b-6 divided b/b-6.And the last one is,Find the quotient:5cd divided 10c/d,thanks to whoever can help.
Click here to see answer by stanbon(75887)

Question 118026: One number is 12 less than another. If 10 times the smaller number minus 2 times the larger number is 8, find the two numbers
Click here to see answer by jim_thompson5910(35256)

Question 118031: x/5=6
Click here to see answer by jim_thompson5910(35256)

Question 118030: 5x/7-6x/5=3/35
Click here to see answer by jim_thompson5910(35256)

Question 117727: Simplify x-1 +y-1 /x-2-y-2 and leave your answer with positive exponents only.
Click here to see answer by ilana(307)

Question 117707: graph each exponential function
A.)f(x)=2*(1/2)
B.)k(x)=3*()1/3
C.)h(x)=3*(3)
D.)g(x)=5*(1.2)
Click here to see answer by Edwin McCravy(20055)

Question 118069: Hello out there,I need some help with some tough problems,The first one is,Find the quotient: 5cd divided by 10c/d.The next one is,Find the quotient: b^2/b-6 divided by b/b-6.The third one is,Find the quotient: e^2-e-12/e-4.And the last one is,Find the quotient:(6x+9)divided by(2x+3.)Thanks to whoever can help.
Click here to see answer by jim_thompson5910(35256)

Question 117107: Which of the following is NOT an expression?
a. t(z+6)
b. t+/z
c. (z)(t)-3
d. z+t+6

Click here to see answer by misscrt(37)

Question 117207: Can someone help me with this problem:
Add or subtract as indicated. Express your result in simplest form.
(2a/a^2-a-12)-(3/a^2-2a-8)
I think I know the first step is to add the integers togethher.
Click here to see answer by misscrt(37)

Question 117375: 7x=t
Click here to see answer by checkley71(8403)

Question 118124: Hello out there,I need some help with some tough problems,the first one is,Simplify: 9/k+8/k.The next one is,Find the quotient: 2x^2+7x+3/2x+1.The third one is,Find the quotient:(a^2+11a+30)divided by(2x+3).And the last one is,Find the quotient:(6x+9)divided by(2x+3),thanks to whoever can help.
Click here to see answer by checkley71(8403)

Question 118183: Hello out there,I need help with two tough problems,the first one is,Solve:3y/2=7+y/4.And the last one is,Find the quotient:e^2-e-12/e-4,thanks to whoever can help.
Click here to see answer by jim_thompson5910(35256)

Question 118201:

pleas help me solve this equation: b+3(b-1)+2(3-1)=6

Click here to see answer by checkley71(8403)

Question 118274: Solve for the variable.
8r/5 - 2 = 3r/10 + 8
HELP!! I know I need to collect terms on each side but Im not sure how to deal with the 8r/5 and 3r/10.
this is as far as I got.
8r/5 - 2 = 3r/10 + 8
+ 2 + 2
_____________________
8r/5 = 3r/10 + 10
can you tell me what to do next please.
Click here to see answer by Earlsdon(6294)

Question 118275: Find the equation, in standard form, with all integer coefficients, of the line perpendicular to 3x � 6y = 9 and passing through (-2, -1)
Click here to see answer by ilana(307)

Question 118329: 9q/10 - 3/5q = 3/4 - 1/8
Can someone tell me the steps to solve this?

Click here to see answer by jim_thompson5910(35256)

Question 118348: factor ym(xm-xmy ^2)
thank you
Click here to see answer by stanbon(75887)

Question 118347: find a quadratic equation with the roots 2 and 4
thank you
Click here to see answer by stanbon(75887)

Question 118379: I am trying to work a problem, but I am not even sure I understand the problem, and am unsure of how to go about it:
If the function g is defined for all nonzero numbers y by g(y)=y/|y|, what is the value of g(2)-g(-200)?
The answer is supposed to be 2.
Click here to see answer by jim_thompson5910(35256)

Question 118385: Pat invested a total of $3,000. Part of the money yields 10 percent interest per year, and the rest yields 8 percent interest per year. If the total yearly interest from this investment is $256, how much did Pat invest at 10% and how much at 8%?
I assume this problem uses the I=P*RT equation, but with a twist. I have tried to come up with several formulas with no avail.
Click here to see answer by ptaylor(2198)

Question 118408: -4y-(5y+6)=-7y+3
Click here to see answer by jim_thompson5910(35256)

Question 118422: A group can charter a particular aircraft at a fixed total cost. If 36 people charter the aircraft rather than 40 people, then the cost per person is greater by $12. What is the cost per person if 40 people charter the aircraft?
The answer is $108.
I've tried several formulas, but am convinced I am missing an integral piece of the equation.
Click here to see answer by stanbon(75887)

Question 118453: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together.
I know that Sally can paint a house 2/3 faster than John.
Click here to see answer by ankor@dixie-net.com(22740)

Question 118462: Please help me solve this equation: {{1/2x=3 5/6}}
Click here to see answer by MathLover1(20849)

Question 118508: Iam the mother of a 13 year old that is having troubling with algebra and I really need to understand how the solutions are found in order to help him.
Example: 5x + 7 -2x = 22
Click here to see answer by tutor_paul(519)

Question 115907: state the property needed to solve each equation
z-(-2)=-3
Click here to see answer by HyperBrain(694)

Question 118545: now im tring to to find out how to make a table using a equation so could u tell me what to do or how to do it
Click here to see answer by solver91311(24713)

Question 118561: Find three consecutive numbers whose sum is 60.
Click here to see answer by bucky(2189)

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, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580