Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 1090832: How do you convert "the difference when a number z is subtracted from sixteen is two" into an equation?
Click here to see answer by Alan3354(69443)

Question 1090827: Phoebe and Emilia are both working on a homework assignment of 36
problems. Phoebe has completed 75% of her homework problems. Emilia has
completed 2/3 of hers.
Who has the most homework remaining to complete?
A. Emilia has 1 more problem to complete than Phoebe.
B. Emilia has 3 more problems to complete than Phoebe.
C. Phoebe has 1 more problem to complete than Emilia.
D. Phoebe has 3 more problems to complete than Emilia.
Click here to see answer by jorel1380(3719)

Question 1090923: Please help me with this.
Find the real root of this equation and write the answer as an ordered pair.
y = x^3 - X^2 - 4x +7

Thanks a million!
Click here to see answer by MathLover1(20849)

Question 1090970: How do I solve this rational expression 9m=^2-4/23 please help I am lost
Click here to see answer by Alan3354(69443)

Question 1090970: How do I solve this rational expression 9m=^2-4/23 please help I am lost
Click here to see answer by ikleyn(52781)

Question 1090969: How do I graph T=30-3H
Click here to see answer by Alan3354(69443)

Question 1090987: 3/4w+5=1/2w+9
I tried solving this and got the answer 1 but when I replaced w with 1 it didn't have the same answers.
How I got the answer 1:
3/4w-1/2w=1/4w
1/4w+5=9
5-5=9-5
1/4w=4
w=1
Please help, thanks a ton!
Click here to see answer by jim_thompson5910(35256)

Question 1090971: The area of the surface of the swimming pool is 210 square feet. What is the length d of the deep end (in feet)?

Click here to see answer by ikleyn(52781)

Question 1091013: please help me to solve this equation 5-(n-4)=3(n+2)

Click here to see answer by MathLover1(20849)

Question 1091102: My homework says "Stan says 'My niece Fran is currently 1/3 of my age. But in 12 years, she will be 1/2 of my age.' How old is Stan NOW?"
Click here to see answer by ikleyn(52781)

Question 1091117: x + 2y = 4
y = x + 1
Click here to see answer by josgarithmetic(39617)

Question 1091152: A number added to its square gives 20. The number is?
Click here to see answer by jorel1380(3719)

Question 1091153: Twice the sum of a number and 4 gives 10. What is the number?
Click here to see answer by ikleyn(52781)

Question 1091153: Twice the sum of a number and 4 gives 10. What is the number?
Click here to see answer by josgarithmetic(39617)

Question 1091151: I am thinking of a number. Half the sum of that number and 11 is the same as 2 more than the number. What is the number?
Click here to see answer by josgarithmetic(39617)

Question 1091191: A 50%sulfuric acid solution is to be mixed with a 75% sulfuric acid solution to get 60 liters of a 60% sulfuric acid solution . How many liters of the 50% solution and the 75% solution should be mixed
Click here to see answer by josmiceli(19441)

Question 1091183: Hello! Can you help me with this word problem? Thank you:)
Jerbie is two years older than Juan Mig. Three years from now Juan Mig's age would be half the age of Jerbie. The sum of their ages is 30. Find individual ages.
Click here to see answer by josgarithmetic(39617)

Question 1091171: four more than one third x
Click here to see answer by ankor@dixie-net.com(22740)

Question 1091171: four more than one third x
Click here to see answer by ikleyn(52781)

Question 1091252: x/3-15=-7

Click here to see answer by Boreal(15235)

Question 1091255: How do you write an equation in the variables x and y for the
line that passes through the point (18,14) and that is
perpendicular to the line 9x+6y=174.
Click here to see answer by Edwin McCravy(20055)

Question 1091263: I am having a hard time trying to solve this equation 1/3(9x+27)-4=1/2(2x+54)
Click here to see answer by Edwin McCravy(20055)

Question 1091325: An estate of
$347,000
is left to three siblings. The eldest receives
2
times as much as the youngest. The middle sibling receives
$15,000
more than the youngest. How much did each receive?
Click here to see answer by Boreal(15235)

Question 1091329: The eSummer School class want to go to WONDERLAND for their end of summer trip.
It cost $800 to rent a bus and $12 per student for admission to the park.
Let n represent the number of students who go on the trip
Let C represent total cost of the trip
If the total cost of the trip is $1280 how many students attended the trip?
Click here to see answer by Boreal(15235)

Question 1091324: Find the equation of the line that is perpendicular to y � x = 1, and passes through the point (3,3).
Click here to see answer by Boreal(15235)

Question 1091401: The sum of the digits of a two digit number is 15.if the number formed by reversing the digits less than the original number.find the original number.check your solution

Click here to see answer by Alan3354(69443)

Question 1091472: How many digits are used for printing the page numbers of a book with 100 pages?
Click here to see answer by ikleyn(52781)

Question 1091511: What is the value of y?
y+1/4(7)=-2
Click here to see answer by Boreal(15235)

Question 1091521: Find the slope of the line that contains the pair of points...{what does that mean?↙
A(2, 4), B(4, 6)
Click here to see answer by Alan3354(69443)

Question 1091526: A tank with a base area of 480 square centimeters and height 15 centimeters is 2/3 filled with water. Water is flowing from Faucet X into the tank at a rate of 1.5 liters per minute. At the same time, water is drained out from Faucet Y at a rate of 2.1 liters per minute. How long will it take to empty the tank?
( 1 L = 1,000 cm3)
Click here to see answer by ankor@dixie-net.com(22740)

Question 1091523: A rectangular tank with a square base initially contained 2.6 liters of water. A cube of edges 15 centimeters was full of water. The water from the cubic container was poured into the tank until it was completely filled. There were 95 cubic centimeters of water left in the cube. ( 1 L = 1,000 cm3 )
a) If the height of the rectangular tank is 30 centimeters, find the length of its base.
b) Water from the tank was then drained out at a rate of 0.49 liter per minute. Find the time taken to empty the tank.
Click here to see answer by ankor@dixie-net.com(22740)

Question 1091600: Divide 3y^2-2y+1 by y+4
Click here to see answer by MathLover1(20849)

Question 1091600: Divide 3y^2-2y+1 by y+4
Click here to see answer by ikleyn(52781)

Question 1091613: how many quarts of pure antifreeze must be added to 8 quarts of a 50% antifreeze solution to obtain a 60% antifreeze ?''.

Click here to see answer by richwmiller(17219)

Question 1091613: how many quarts of pure antifreeze must be added to 8 quarts of a 50% antifreeze solution to obtain a 60% antifreeze ?''.

Click here to see answer by ikleyn(52781)

Question 1091623: What are grouping symbols? What is the 7[2.5+3(12-7)]
Click here to see answer by ikleyn(52781)

Question 1091633: BASKETBALL
a regulation size basketball has a volume of 455.9 cubic inches. Use this information to answer the following questions. Approximate to nearest 10th.
23. The formula for the volume of a sphere is V= 4/3 π r^3. What is the radius of the basketball?
24. What is the diameter of the basketball?
25. The formula for the circumference of the basketball is C=2πr. If the circumference of a basketball is 29 inches, is it a regulation size ball?
Click here to see answer by Alan3354(69443)

Question 1091669: Maria is 3 years older than Paula. Paula is 3 times Danielle's age. If their three ages add up to be 59 this year, how old will each girl be in 3 years?
Click here to see answer by josmiceli(19441)

Question 1091710: William is diving off a platform 10 feet above sea level. William dives at a rate of -3.5 feet per second. How many seconds will it take to reach -21.5 feet?
A. 2.5
B. 3.3
C. 7
D. 9
Click here to see answer by Fombitz(32388)

Question 1091731: 5/4y-1/3=1/2(3y-1)
Click here to see answer by Alan3354(69443)

Question 1091750: How do I solve -2(7-y)+4=-4
Click here to see answer by MathLover1(20849)

Question 1091750: How do I solve -2(7-y)+4=-4
Click here to see answer by ikleyn(52781)

Question 1091711: solve difference quotient of -x^2-3x+5
Click here to see answer by josgarithmetic(39617)

Question 1091759: Write the standard form of the equation of the line through the pair of points
(5,8 and(−6,10).
Write the equation using only integer coefficients.
The equation is ?x+?y=?
Click here to see answer by josgarithmetic(39617)

Question 1091764: Write an equation of the line containing the given point and parallel to the given line. Express your answer in the form
y=mx+b.

(4,5);x+6y=7
The equation for the line is ?
Click here to see answer by josgarithmetic(39617)

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