any math wiz need help please.?
969004
1) Simply add the two equations.  This will cancel the y's\n3x = 13\nDivide both sides by 3\nx = 13/3\nReplace x with 13/3 in one of the equations to find y\nx + y = 4, so\n13/3 + y = 4\ny = 4 - 13/3\ny = 12/3 - 13/3 = -1/3\nAnswer: x = 13/3 and y = -1/3\n\n2) Use substitution.  Replace y with (5/4)x in the first equation\n-10x + 8y = -6 becomes\n-10x + 8(5/4)x = -6\nSimplify\n-10x + 10x = -6\n0 = -6\nSince this is false, there is no solution.\n\n3) Multiply the first equation by -2 and add this to the second equation.\n-2x + 4y = -8\n2x - y = 4\n3y = -4\ny = -4/3\nReplace y with -4/3 in one of the equations and solve for x.\n2x - y = 4\n2x - (-4/3) = 4\n2x + 4/3 = 4\n2x = 4 - 4/3\n2x = 12/3 - 4/3\n2x = 8/3\nDivide both sides by 2\nx = 4/3\nAnswer: x = 4/3 and y = -4/3
873100
Here you go!\n\nhttp://www.math.com/homeworkhelp/Algebra.html
1056171
Try www.purplemath.com it shows you how to work out problems step by step
936579
your question seems to be incomplete.\nso far....\nwidth=x\nlength= 2x-1
53373
Here are a few sites you can check out:\nhttp://www.freemathhelp.com/\nhttp://www.mathgoodies.com/\n\nHope these sites can help you..
663777
SOrry, I can't help you. If I had the formulas I could do it, but there is no way I remember that off the top of my head! Good luck
113980
Use a calculator - numerator divided by denominator will give you the answer.
4519
(4/3)*pi*r^3\n\n[four thirds pi r cubed]\n\ngood luck!
520168
Try this:\n\nhttp://www.algebra.com/
247689
Use analytical trig (hint: sin function).  That should give you the answer you are looking for.
865937
w=x\nl=2x\n2w+2l=P\n2x+2(2x)=2\n2x+4x=2\n6x=2\nx= 1/3\n\nwidth is 1/3 and length is 2/3
175327
Try this, maybe?\n\nhttp://mathforum.org/library/drmath/drmath.elem.html
703752
simply subtract 7 from both sides. This leave you with\n\nx<_3
448711
51,336\n\nNext time just type your math problem into at google search and it will do the math for you!\n\nLink below.
903397
You might try asking this question under "Mathematics."
115650
--5 2 0 1 -----  F L O W\n--4 2 0 1 -----  B L O W\n--1 0 2 5 -----  W O L F\n-------------------------\n1 0 4 2 7 ----- N O B L E\n\nBut still N and W value are coming same...does this problem have solution. If you have then can you please send the answer to my mail id hssiddhu@yahoo.com
501445
Try this website. http://www.webmath.com/index3.html