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A room 10 ft by 12 ft is to have crown molding installed all the way around the ceiling. The molding costs $0.75 per foot, tax included. What is the total cost for the molding?

Respuesta :

A room 10 ft by 12 ft is to have crown molding installed all the way around the ceiling. The molding costs $0.75 per foot, tax included. What is the total cost for the molding?

step 1

Find the perimeter

P=2(L+W)

substitute given values

P=2(10+12)

P=44 ft

step 2

Find the cost

Applying proportion

0.75/1=x/44

solve for x

x=44*0.75

x=$33

answer is $33