Question

Alberto sanded a wooden floor with his electric sander at a constant rate. Suppose he sanded 40 1/2 square feet of floor in 3/5 hours. How large an area would he have sanded in 1 hour?

A. 48 3/5 square feet in 1 hour

B. 67 1/2 square feet in 1 hour

C. 76 1/2 square feet in 1 hour

D. 80 1/2 square feet in 1 hour

Answer 1

i believe it would be B because 40.5 divided by 3 is 13.5 and that times 5 is 67.5

Answer 2

B) 67 1/2 ft per hr

Explanation:

40 1/2 ÷ 3/5 can be rewritten as:

81/2 × 5/3 = 405/6

405/6 = 67 1/2