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September 20, 2014

September 20, 2014

Posted by **tyler** on Thursday, February 28, 2008 at 7:43pm.

write an expression in terms of x to represent the volume of concrete contained in the sidewalk. explain how you got your expression.

- math -
**drwls**, Thursday, February 28, 2008 at 8:53pmIf 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.

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