Asked by tyler
you are putting in a 20ftx30ft rectangular pool. your pool must be surrounded by a concrete sidewalk of uniform width and 3in thick.
write an expression in terms of x to represent the volume of concrete contained in the sidewalk. explain how you got your expression.
write an expression in terms of x to represent the volume of concrete contained in the sidewalk. explain how you got your expression.
Answers
Answered by
drwls
If x is the width in feet, the volume in cubic feet is
[(30 + 2x)(20 + 2x)- 30*20]*(1/4)
That expression can be simplified somewhat by canceling out the 600's.
[(30 + 2x)(20 + 2x)- 30*20]*(1/4)
That expression can be simplified somewhat by canceling out the 600's.
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