The area, A square feet, of the wall Ivan is painting is directly proportional to the time he spends painting the wall, T hours. It takes Ivan 4 hours to paint 113.6 feet of the wall. How long will he take to paint 227.2 square feet of the wall?

Question

Mathematics

Isabelle Kirby

5 November, 22:51

The area, A square feet, of the wall Ivan is painting is directly proportional to the time he spends painting the wall, T hours. It takes Ivan 4 hours to paint 113.6 feet of the wall. How long will he take to paint 227.2 square feet of the wall?

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Answers (1)

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Troy Burch · Answer 1

Answer: 4 hours

Step-by-step explanation: Square feet of the wall F²∆ T

F² = KT

113.6² = K4

K = 12,904.96

Time to paint 227.2 is;

F² = KT

227.2² = 12,904.96x T

T = 51,619.84/12,904.96

T = 4 hours