cMande9z7miko cMande9z7miko
  • 25-05-2017
  • Mathematics
contestada

The walls in a room are being painted. four cans of paint will cover 480ft 2. how many cans will be needed to cover 840ft2

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 06-10-2019

Answer:

  7 cans

Step-by-step explanation:

The number of cans of paint is presumed to be proportional to the area, so ...

  (4 cans)/(480 ft²) = (how many cans)/(840 ft²)

Multiplying by 840 ft², we get ...

  (how many cans) = (4 cans)(840 ft²)/(480 ft²) = (4 cans)(7/4)

  (how many cans) = 7 cans

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