Homework Help: Geometry

Posted by Need Help on Thursday, April 14, 2011 at 8:52pm.

A gallon of paint costs $20 and covers 465 square feet. Three coats of paint are recommended for even coverage. The room to be painted is 12 feet high, 20 feet long, and 20 feet wide.

Only 4 gallons of paint are left to paint the room. Is this enough paint for the walls of the room? Explain.

How many gallons are needed to paint the walls?

How much would it cost to paint the walls and ceiling?

Geometry - Ms. Sue, Thursday, April 14, 2011 at 8:55pm
First, find the square feet of the walls of this room.

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