SOLUTION: i was stuck on one question on my homework...it says the area of a rectangle with length is 3x+2 and width 2 is 178ft squared. What is the perimeter of the rectangle?

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Question 873909: i was stuck on one question on my homework...it says the area of a rectangle with length is 3x+2 and width 2 is 178ft squared. What is the perimeter of the rectangle?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Write or list everything you know about this problem.

p for perimeter,
highlight_green%282%283x%2B2%29%2B2%2A2=178%29----USE THIS NOW!
width is 2
length is 3x+2
A is area,
highlight_green%28A=%283x%2B2%29%2A2%29

Most obvious is you can solve for x and then use it to answer, what is A.
-
-
6x%2B4%2B4=178
6x=170
x=170%2F6=85%2F3=highlight_green%2828%261%2F3=x%29, and use this to help find A.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

i was stuck on one question on my homework...it says the area of a rectangle with length is 3x+2 and width 2 is 178ft squared. What is the perimeter of the rectangle?


x = 29

Length:    3(29) + 2, or 87 + 2, or 89

Width:     2 (given)

Perimeter: 2(89) + 2(2), or 178 + 4, or highlight_green%28182%29 units

You can do the check!! 



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