Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 182982: 4.
How do I write this as an equation?
15 is what percent of 3?
identify the variable, the co-eff, and the constant please, so I can KNOW what is what.
thank you.
Click here to see answer by checkley77(12569)

Question 182961: Write the equation for a line that is perpendicular to the line,
y = 5x + 10, and goes through the point (8, -1).

Click here to see answer by nerdybill(6948)

Question 182980: 2.
Please, I need to see this spelled out for me or I will never understand how to do this.
Simplify the algebraic expression
6z + 1 + 4x^2 - 3y3 + 7x - 8y2 + 2x2 - x + 5z - 17
and evaluate it for x = -2, y = -3, z = -5.
Identify the variables, constants, and coefficients in the simplified expression.
thank you. I'm very frustrated and need help badly.
Click here to see answer by checkley77(12569)

Question 182979: 1.
if I don't actually SEE this in progress, I will NEVER understand it. Please help.
1. Simplify the algebraic expression
5xy - 3yz - 5xz + yz - 4xz + 7xy
and evaluate it for x = 10, y = -4, z = -6.
Identify the variables, constants, and coefficients in the simplified expression.
thank you!
Click here to see answer by checkley77(12569)

Question 182995: 5. The sum of the page numbers on facing pages of a book is 157; what are the page numbers?
Click here to see answer by stanbon(57203)

Question 183044: Solve the equations for x and y or state that
there is no solution.
3x + 7y = 5
2x - y = 1

Click here to see answer by jim_thompson5910(28476)

Question 183047: Solve the following equations for x and y or state that
there is no solution.
5x – 3y = 5
x/2 + y/10 = 3

Click here to see answer by jim_thompson5910(28476)

Question 183045: Solve the equations for x and y or state that
there is no solution.
5x - 4y = 2
4x - 5y = -1

Click here to see answer by jim_thompson5910(28476)

Question 183045: Solve the equations for x and y or state that
there is no solution.
5x - 4y = 2
4x - 5y = -1

Click here to see answer by stanbon(57203)

Question 182975: The quotient of three times a number and 5 amounts to half the number increased by two. How do I write the equations or inequality to represent the unknowns?
Click here to see answer by ankor@dixie-net.com(15622)

Question 182999: 10. Tom's uncle owns a triangular piece of land. The perimeter fence that surrounds the land measures 378 yards. The shortest side is 30 yards longer than one-half of the longest side. The second longest side is 2 yards shorter than the longest side. What is the length of each side?
Click here to see answer by checkley77(12569)

Question 183072: 1. -8(x+4)-(-9x-3)=-8
2. 3(y-2)/5=1-3y
Click here to see answer by jim_thompson5910(28476)

Question 183086: -7y-8y= -15
I have tried adding 7y to the -7y to cancel that out then add the 7y to -8y which comes out to be -y= -15 so my answer should be 15 but the answer according to the back of my book says it should be 1. What am I doing wrong?
Click here to see answer by jim_thompson5910(28476)

Question 183120: Is x=y^4+5 a function?
Click here to see answer by stanbon(57203)

Question 183211: "find all integers m for which y^2+my+50 can be factored?"
Click here to see answer by jim_thompson5910(28476)

Question 183231: 15x-3(3x+4)=6
Click here to see answer by jim_thompson5910(28476)

Question 183278: how do you solve 3w-4=w+8
Click here to see answer by jim_thompson5910(28476)

Question 183286: how do you solve 3n-16<8n+29?
Click here to see answer by stanbon(57203)

Question 183290: Solve: 15-2x=5-7x
Click here to see answer by jim_thompson5910(28476)

Question 183279: how do you solve 2.4(n-1)=12?
Click here to see answer by jim_thompson5910(28476)

Question 183298: solve 5m+7=38?
Click here to see answer by jim_thompson5910(28476)

Question 183285: how do you solve 2.4(n-1)=12/
Click here to see answer by jim_thompson5910(28476)

Question 183305: 3(2x -1) +5=14
just wanted to know how to do this, I really don't understand it.
thank you
Kanita
Click here to see answer by jim_thompson5910(28476)

Question 183376: How to reach the end results for x/2+1=3, 3x/2+1=4 and 2x/3+1=5. break these down please
Click here to see answer by vleith(2825)

Question 183405: Locate on ASVAB test on testpreview.com
Advanced Math Section-#8. If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it?

Advanced Algebra-#3. Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?
I know the answer, but what was the solution in detail to arrive at the answer? What is the equation or formula I will use when taking during the test? Help I am stumped. Thanks

Click here to see answer by solver91311(16868)

Question 183452: 5/x+2 + 3/x-2
Click here to see answer by edjones(7569)

Question 183519: Can you help me solve this equation
1/4x+2/3x-1/2=5/3x+2
Click here to see answer by mueez alam(2)

Question 183518: Can you please help me solve this equation.
(x+1)(x-2)=5

Click here to see answer by checkley77(12569)

Question 183520: Can you please help me solve this.
x-5x^1/2-36=0
Click here to see answer by stanbon(57203)

Question 183542: 2y+3x-11=0

Click here to see answer by Alan3354(30924)

Question 183546: solve this equation
2y+3x-11=0

Click here to see answer by jim_thompson5910(28476)

Question 183565: Find the solution set and express in interval notation.
1 /2x-5/ -3 ≥ 9
2

Click here to see answer by stanbon(57203)

Question 183581: 3x+5y=15 and y=x+3
Click here to see answer by checkley77(12569)

Question 183588: 9x+3y=27
12x-3y=36
Click here to see answer by checkley77(12569)

Question 183584: c=b+4
b=3(a+1)
c=2a+7
What is the value of a, b and c
Click here to see answer by checkley77(12569)

Question 183640: -6r-5=7-12r
Click here to see answer by jim_thompson5910(28476)

Question 183635: To get baseball tickets for $3.00 ec. there is a one time fee of $30.00
Regular ticket price is $6.00
How many $3.00 tickets must you sell to equal the $6.00 price?
Click here to see answer by halbren(10)

Question 183632: Write an equation for the following story problem:
Will averages 18 pts/basketball game and has a total of 483 overall pts.
Tom averages 21/pts/basketball game and has a total of 462 overall pts.
Write an equation showing how many games will it take for the boys to have equal overall pts.
Click here to see answer by josmiceli(9645)

Question 183766: -143>11m
i need help solving this inequality please.
( :
Click here to see answer by edjones(7569)

Question 183774: m 1 2 3 10 15
k 2 7 12 47 72
We are trying to write a rule for this table. We need letters to represent the variables.
Click here to see answer by Alan3354(30924)

Question 183802: 1) 4(a-3)=3-(a+5)
2) 3z=2(z-3)+9
3) 8a-(a-7)=21
I am in an adult ed program getting my high school diploma. These three problems are the only ones that I am struggling real hard with. We are given packets to work--and I have grasped most of the problems. These three are the ones that are not computing for me. HELP!!
Click here to see answer by stanbon(57203)

Question 183813: a+b/10 for a = 95 and b = 5
a+b/10 = ______
Click here to see answer by stanbon(57203)

Question 183883: 5t+1>3t-13
Click here to see answer by Mathtut(3670)

Question 183880: 3w-4=w+8
Click here to see answer by Mathtut(3670)

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