Homework Help: math

Posted by christian on Thursday, April 19, 2012 at 12:50am.

colin is buying dirt to fill a garden bed that is a 9 foot by 16 foot rectangle. if he wants to fill it to a depth of 4 inches, how many cubic yards of dirt does he need? if dirt costs $25 per yard, how much will the project cost?

math - Steve, Thursday, April 19, 2012 at 11:53am
just keep track of the units so you can convert volume to dollars:

9ft * 16ft * 4in * ft/12in * yd^3/27ft^3 * $25/yd^3 = $44.44

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