Asked by torrance

A gallon of paint will cover 300 ft2. How many gallons will you
need to paint a 12-ft x 18-ft wall with two coats of this paint?
(Round to nearest half gallon

Answers

Answered by MathMate
Area of wall=12*18=216 sq.ft.
Area two coats will cover
= 2*216
= 432 sq.ft
Use proportions
x gal./432 sq.ft = 1 gal./300 sq.ft
Solve for x:
x=(1/300)*432=1.44 gallons.
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