Homework Help: Algebra

Posted by Shantelle on Thursday, May 5, 2011 at 8:37pm.

the length of a rectangle is 5m more than twice its width. and the area of the rectangle is 88m^2. find the dimensions of the rectangle.

Algebra - MathMate, Friday, May 6, 2011 at 10:36am
Let
w=width, then
length = 2w+5 m
Area = 88 m²
w(2w+5)=88
2w²+5w-88=0 ...(1)

Solve for w in equation (1) by factorization or otherwise and reject the negative root.
Algebra - Anonymous, Monday, June 27, 2011 at 8:45pm
a=198 in. ^2
x+7

what is the length and width ?

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