Friday
December 19, 2014

Homework Help: math

Posted by Willy on Wednesday, April 9, 2014 at 8:16pm.

The concrete for a sidewalk is being poured outside the perimeter of a new subdivision, which is a 280 ft. by 720 ft. rectangle. The building code requires that the sidewalk be 5 feet wide and 8 inches deep. How many cubic yards of concrete will need to be poured? How much will the concrete for the new subdivision cost if the price per cubic yard of concrete is $74.50 and an extra 5% of concrete is being ordered?

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