Homework Help: Math

Posted by Hayley on Sunday, November 21, 2010 at 8:39pm.

Mr. Frost is painting his garage, which has a surface area of 500 square feet. He has 1 3/4 gallons of paint. If one gallon of paint covers 150 square feet, how much more paint must Mr. Frost buy? Show your work. Please help.

Math - Ms. Sue, Sunday, November 21, 2010 at 8:47pm
500 / 150 = 3 1/3 gallons

3 1/3 - 1 3/4 =
3 4/12 - 1 9/12 =
2 16/12 - 1 9/12 = 1 7/12 gallons
Math - Damon, Sunday, November 21, 2010 at 8:48pm
500 ft^2 * 1 gal/150 ft^2 = 3 1/3 gallons needed

3 1/3 - 1 3/4 = 2 16/12 - 1 9/12

= 1 7/12

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