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You are painting a ceiling in a room. The room measures 30 feet by 40 feet. One gallon of paint costs $25 and covers 200 square feet. How much will it cost to paint the ceiling?
A. $6
B. $17.50
C. $150
D. $1,200

Respuesta :

calculista
we know that
the area of the room=30*40------> 1200 ft²

1 gallon of paint cover----------------> 200 ft²
x---------------------------> 1200 ft²
x=1200/200------> x=6 gallons

1 gallon cost------------> $25
6 gallons-----------> x
x=6*25-----> x=$150

the answer is
the option C. $150

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