SOLUTION: Please help The combined Area of a square and a rectangle is 57 square feet. The width of the rectangle is 3 feet more than the length of a side of the square and the length of

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Question 980986: Please help
The combined Area of a square and a rectangle is 57 square feet. The width of the rectangle is 3 feet more than the length of a side of the square and the length of the rectangle is 5 feet more than the length of a side of the square. Find the length of the rectangle.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
A bunch of things to give variables and find expressions ...

s, the sidelength of the square
w, width of rectangle
L, length of rectangle
-
system%28s%5E2%2BwL=57%2C+w=3%2Bs%2CL=5%2Bs%29

Can you do what you need? Three equations and three unknown variables. Two simple substitutions will set you well in the right path.


ANSWERS:
system%28s=3%2Cw=6%2CL=8%29