Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 207135: Evaluate the expression 5000-50(75-t), for t=25
Click here to see answer by jim_thompson5910(35256)

Question 207182: In any triangle, the sum of the measures of the angles is 180 degrees. In triangle ABC, angle A is three times as large as angle B and also 16 degrees larger than angle C. Find the measure of each angle.
Click here to see answer by rfer(16322)

Question 207096: Tickets at a football match cost $8, $15 or $20 each. The number of $15 tickets sold was double the number of $8 tickets sold. 6000 more $20 tickets were sold than $15 tickets. If the total gate receipts were $783000, how many of each type of ticket was sold?
Click here to see answer by rfer(16322)

Question 207254: I need assistance on this one. I think I set it up wrong.
6b-(3b+8) = 16
Whatever you can do will be appreciated.
Click here to see answer by jim_thompson5910(35256)

Question 207322: Finding the quotient and remainder of (w^3+1)/(w+1)
I need help figuring this problem out. I am not sure If I did it write. I just need to make sure our answers match.
Click here to see answer by RAY100(1637)

Question 207308: 8z-7=3z-7+5z
Click here to see answer by RAY100(1637)

Question 207331: Last moth in the village, 125 people were issued a parking ticket. this month only 83 people were issued one. What was the percent reduction from this month to last month in the number of people who were issued a parking ticket?
Click here to see answer by rfer(16322)

Question 207350: About two twenty fifths of the male population in the world can't distinguish red from green. If there are 14 boys in the ninth grade that can't distinguish red from green, about how many ninth-grade boys are there in all? Write and solve an equation to find the answer. Help Please.

Click here to see answer by rfer(16322)

Question 207368: write an equation and solve each problems. be sure to identify the variable
1. fourteen less than twice some numbers is 154. find the number
Click here to see answer by rfer(16322)

Question 207394: Can you please answer 8-t=-25
Click here to see answer by rfer(16322)

Question 207397: what is the surface area of the sphere in exercise 1
Click here to see answer by rfer(16322)

Question 207422: Is it possible to find the values of A, B & C in the following equation. It is known that they are not equal.
(A * 5) + (B * 4) + (C * 3) = 220
Thank you.
Click here to see answer by Alan3354(69443)

Question 207424: Factor 4y2 - 6y - 4
Click here to see answer by vleith(2983)

Question 207425: What are the coordinates of the midpoint of the line segment whose
endpoints are (-4, -7) and (2,1)?
Click here to see answer by Alan3354(69443)

Question 207426: Solve the system of equations x=4 - y and 3x - 2y = 8
Click here to see answer by rfer(16322)

Question 207498: kenya wants to build a pen with a perimeter of no more or no less than 30 yds. she knew that it didnt make since to consider negative numbers for her x-dimension. but she asked herslef if she could interpret an x-dimension of zero in any meaningful way.she thought about the formula relating the y-dimension to the x-dimension and decided to include x=0. what layout of fencing would correspond to the value x=0? what area would be included inside the fence? why could the shape created by this fencing layout be called a "degenerate rectangle?"
Click here to see answer by rfer(16322)

Question 207483: 5x + 2(11 - 4x) = 82 + x
Click here to see answer by jim_thompson5910(35256)

Question 207538: 13+c=-38
Click here to see answer by rfer(16322)

Question 207550: please hepl me solve this equation 3m-n=2m+n solve for m
Click here to see answer by rfer(16322)

Question 207550: please hepl me solve this equation 3m-n=2m+n solve for m
Click here to see answer by jim_thompson5910(35256)

Question 207551: please hepl me solve the equation a-3y over b + 4 = a+ y solve for y

Click here to see answer by jim_thompson5910(35256)

Question 207575: I am having difficulty solving the following equations for review assignment in prep for my new geometry class Mon.
#1. 5(6-4v)=v+21
#2 6x-5=7-9x
#3 -4(6y-5)=23-3(8y+1)
Click here to see answer by jim_thompson5910(35256)

Question 207617: To me this sounds complicated. I have tried every simplification I know but can't seem to get even one of the numbers.
Problem: If you take the number of piles of jeans they have, and divide them up into two unequal numbers, then 1545 times the difference between the two numbers equals three times the difference between the squares of the two numbers.
Here's the equation I got:(a-b)1545=3(a^2-b^2). I'm solving for both a and b. Once found these numbers added will tell me how many piles of jeans they have. Can this be done? Any help will be appreciated.
Click here to see answer by Edwin McCravy(20055)

Question 207619: -5k+ar=r-5y solve for r
Click here to see answer by jim_thompson5910(35256)

Question 207649: 5(2x-3)+8=9 what is x?
Click here to see answer by jim_thompson5910(35256)

Question 207649: 5(2x-3)+8=9 what is x?
Click here to see answer by rfer(16322)

Question 207651: I need to find all the values of t.
(2/(t-3))+(2/(t-2))=(10/(t^(2)-5t+6))
Click here to see answer by jim_thompson5910(35256)

Question 207668: Please solve this formula for the given variable:
2/w=x/5
Solve for w.
Thanks!
Click here to see answer by jim_thompson5910(35256)

Question 207666: please help.solve for the unknown
1.9 = (2sqrt y)-1
2.5 = sqrt a + 2
3.5 = sqrt a + 2 (the 2 is not inside the sqrt symbol)
4.33 + 4 sqrt a
thanks so much for your time and help.I really appreciate it.
Click here to see answer by jim_thompson5910(35256)

Question 207674: Tell whether the following equation determines y to be a function of x: y^2=x+3
a. yes
b. no
c. sometimes
d. only when x= -1
Click here to see answer by stanbon(75887)

Question 207677: Solve the formula in terms of the given variable.
A=2h(L+w)
First, solve for h.
Next, solve for L.
Thanks!
Click here to see answer by jim_thompson5910(35256)

Question 207740: i need to name the properity illustrated in these equations
-6+3=5+(-6)
6x1=6
3(8-5)=3x8+3x(-5)
4x1/4=1
8+0=8
(3x8)x4=3x(8x4)
2x8=8x2
6(8+5)=6x8+6x5

Click here to see answer by RAY100(1637)

Question 207747: 14x=x
Click here to see answer by rapaljer(4671)

Question 207739: the produce of 6 and y increase by
Click here to see answer by rapaljer(4671)

Question 207843: I think this is linear equations in 2 variables....
3v+2d=33.07
6v+6d=79.38
v=?,d=?
Click here to see answer by checkley77(12844)

Question 207844: i do not know what to do on this problem.
How much 40% antifreeze solution must be mixed with a 80% antifreeze solution to produce 20 gallons of a 70% disinfectant solution? Round answer to the nearest gallon.
? gallons 40% solution, ? gallons 80% solution
Click here to see answer by checkley77(12844)

Question 207842: solve system using addition method
-4x+y=4
-16x-4y=16
solution (?,?)
Click here to see answer by checkley77(12844)

Question 207841: solve system using addition method
x+2y=32
9x-2y=28
solution (?,?)
Click here to see answer by rapaljer(4671)

Question 207839: solve system using substution method
4x+y=5
5y=x+y
solution (?,?)
Click here to see answer by rapaljer(4671)

Question 207868: Soybean meal is 16% protein, cornmeal is 8% protein
How many pounds if each should be mixed together in order to get 320 lb mixture that is 15% protein.
Click here to see answer by rfer(16322)

Question 207886: My motor boat normally travels at 24 km/h in still water. One day I travelled 36 km against a constant current in a river and it took me the same time to travel 48 km with the current. How fast was the current?
Click here to see answer by rapaljer(4671)

Question 207915: q/7.4 = 8.3 how can i solve that, what are the steps?
Click here to see answer by jim_thompson5910(35256)

Question 207773: Id have a question; does anyone know how to solve this system of equations?
3x+4y+z=7
2y+z=3
-5+3y+8z=-31
(the 2y is suppose to be listed under the 4y) could anyone explain how this works??
Click here to see answer by Alan3354(69443)

Question 207884: A motor cyclist makes a trip of 500 km. If he had increased his speed by 10 km/h, he could have covered 600 km in the same time. What was his original speed?
Click here to see answer by ankor@dixie-net.com(22740)

Question 208035:
Click here to see answer by Ajayd(1)

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, 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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