Use a proportion to solve the problem.
-Joan can mow a 7 -acre field in 4 hours. How long would it take her to mow a 4.9 -acre field?
A) $0.7 \mathrm{hr}$
B) $4.8 \mathrm{hr}$
C) $5.8 \mathrm{hr}$
D) $2.8 \mathrm{hr}$

Question

Quizplus · Accepted Answer

Joan mows at a rate of 7 acres/4 hours, so for a 4.9-acre field: $4.9 \text{ acres} \times \frac{4 \text{ hours}}{7 \text{ acres}} = 2.8 \text{ hours}$.

Use a Proportion to Solve the Problem 0.7hr0.7 \mathrm{hr}0.7hr B) 4.8hr4.8 \mathrm{hr}4.8hr

Use a Proportion to Solve the Problem $0.7 \mathrm{hr}$ B) $4.8 \mathrm{hr}$