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Question 619098: 53+t=66
Click here to see answer by user_dude2008(1862)

Question 618967: t^3-4t^2-3t+5=0
Click here to see answer by user_dude2008(1862)

Question 618540: -12=2+5v+2v
Click here to see answer by user_dude2008(1862)

Question 619123: Y=3x + 2
Click here to see answer by user_dude2008(1862)

Question 619112: if a+b=1 and a^2+b^2=2, find a^3+b^3
Click here to see answer by user_dude2008(1862)

Question 619190: 3 square root of 5(-8+9 sqaure root of 5)
Click here to see answer by ewatrrr(24785)

Question 619282: 2+(-4)-12-(-7)+11
Click here to see answer by stanbon(75887)

Question 619474: I was given a practice test and I missed a section in class. I know the answer to the word problems below.. but I am not sure how to set up the equations to get the correct answers. There are 2 questions below:
1-A lab has a 10% acid solution and a 25% acid solution. How many liters of each are required to get 300L of a 15% acid solution?
Answer: 200 at 10%
100 at 25%
BUT HOW?!?!
2-Two trains leave Chicago at the same time and in opposite directions. One is going 120MPH and one is going 130MPH. How long before they are 750 miles apart?
Answer: 6
once again.. HOW?!
THANK YOU!!!
Click here to see answer by jim_thompson5910(35256)

Question 619489: 2r+2r=
Click here to see answer by jim_thompson5910(35256)

Question 619549: Hello, I would like some help with this problem,
Sally,Sarah, and sue worked all summer to save money for school clothes.Sarah saved $50 more than twice as much as Sally,and sue saved $100 more than 1/2 as much as Sally.The total amount saved by the three girls was $
1550. How much did each girl save?
Thank you.
Click here to see answer by stanbon(75887)

Question 619562:
Click here to see answer by stanbon(75887)

Question 619550: Hello, I would like some help with this problem,
On a recent trip, George traveled 300 miles.The number of miles of highway driving was 4 times the number of miles of city driving. If his car gets 20 miles to the gallon in city driving,and 30 miles to the gallon on the highway,how much gas did he use?
Thank you.
Click here to see answer by ankor@dixie-net.com(22740)

Question 619542: Helo, I would like some help with this problem,
If 4260 lbs of ore can produce 28 lbs of a pure metal,how much ore is required to produce 35 lbs of pure metal?
Thank you.
Click here to see answer by ankor@dixie-net.com(22740)

Question 619685: 0.3(2r-3)=0.2r+0.9
Click here to see answer by math-vortex(648)

Question 619888: How many solutions exist for the following system of equations?
-4x � 6y = -28
2x + 3y = 14
Click here to see answer by josmiceli(19441)

Question 620043: It takes bob 4 hours to paint a house and it takes jim 6 hours to paint the same house. How long will it take bob and jim together to paint the house?
Click here to see answer by nerdybill(7384)

Question 620092: We have 1, 333, 55555, 7777777, 999999999. Select 7 digits so, that their sum will be 50
Click here to see answer by Edwin McCravy(20054)

Question 620171: please help me solve for w.
Click here to see answer by ewatrrr(24785)

Question 620227: 3+3=?
Click here to see answer by Alan3354(69443)

Question 620281: assuming that y varies directly as x, if y = 50 when x = 8, find x when y = 75
Click here to see answer by MsRedz123(24)

Question 620291: 5x^7-20x^6+40x^5
Click here to see answer by Alan3354(69443)

Question 620358: Factorise the following:
(2x+y)^2 -3(2x+y) factorise
Click here to see answer by lwsshak3(11628)

Question 620388: factorize a^2-6a+9/6a-3
Click here to see answer by lenny460(1073)

Question 620426: 1/m(m-1)+2/m
Click here to see answer by lynnlo(4176)

Question 620425: silvio is 10 years older than maria. The sum of their ages is equal to four times maria's age. How old are silvio and maria? Write an equation.
Click here to see answer by ewatrrr(24785)

Question 620424: x^2-y^2/3xy^3/2x+2y/x^2y
Click here to see answer by lynnlo(4176)

Question 620471: - | y | + 16
The thing that I don't understand are the lines that are next to the y. Are they suppose to separate the variables?
Click here to see answer by lynnlo(4176)

Question 620475: the standard equation of the line with m = -1 /2 and b = 1
Click here to see answer by ewatrrr(24785)

Question 620378: Function
Click here to see answer by lynnlo(4176)

Question 620551: A tree casts a 25-foot shadow on a sunny day. If the angle of elevation from the tip of the shadow to the top of the tree is 32 degrees, what is the height of the tree to the nearest tenth of a foot?
Click here to see answer by jim_thompson5910(35256)

Question 620547: - | y | + 16
How do I solve this?
Click here to see answer by Alan3354(69443)

Question 620565: What is the slope of the line that passes through the points (-5,4) and (15,-4)?
Click here to see answer by jim_thompson5910(35256)

Question 620481: - | y | + 16

Click here to see answer by Alan3354(69443)

Question 620595: 9+x=9
Click here to see answer by rfer(16322)

Question 620603:
Click here to see answer by jim_thompson5910(35256)

Question 620656: How do you find the roots of an equation?
Click here to see answer by richard1234(7193)

Question 620667: How do you find the roots to an equation?
Click here to see answer by solver91311(24713)

Question 620672: What is the solution to the equation x squared minus 6x equals 0?
Click here to see answer by jim_thompson5910(35256)

Question 620687: Going into a 15% overall final I have 79%. I received 64% on final what is my overall grade
Click here to see answer by jim_thompson5910(35256)

Question 620669: What is a function?
Click here to see answer by math-vortex(648)

Question 620673: (2asquared+3a-1)(a squared-4a)
Click here to see answer by lenny460(1073)

Question 620680: What does bias mean?
Click here to see answer by lynnlo(4176)

Question 620780: Which one of these sentences have an error?
Are you and him related?
Mrs. Armstrong gave her a prize for being first in line.
Miriam said it couldn't have been she.
Tashina and we finished well into the night.
Click here to see answer by lynnlo(4176)

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, 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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