Question

Phillip advised his clients they needed to paint their master bedroom before showing the property. the walls of this room were 11' high. the wall lengths were 13', 19', 13', and 17'. if a gallon of paint covers 180 sf, how many whole gallons would the homesellers have to buy

Answer 1

For this case, the first thing we must do is find the total area.
 We have then:
 $A1 = (11) * (13) = 143 feet ^ 2 A2 = (11) * (19) = 209 feet ^ 2$
 $A3 = (11) * (13) = 143 feet ^ 2 A4 = (11) * (17) = 187 feet ^ 2$
 Then, the total area is: $A = A1 + A2 + A3 + A4$
 Substituting values:
 $A = 143 + 209 + 143 + 187 A = 682 feet ^ 2$
 The number of gallons is: $N = 682/180 N = 3.79$
 Round to the whole whole integer: $N = 4 gallons$
 Answer:
 the homesellers would have to buy 4 gallons