Question

type the correct answer in the box. use numbers instead of words. carla mows grass at a rate of 90 square yards of area per 10 minutes. to the nearest whole number, what is the equivalent rate in square meters per hour? use 1 square meter ≈ 1.2 square yards and 1 hour = 60 minutes. square meters per hour

Explanation:

Step1: Find the rate in square yards per hour

Carla mows 90 square yards in 10 minutes. There are 60 minutes in an hour, so the number of 10 - minute intervals in an hour is $\frac{60}{10}=6$. Then the rate in square yards per hour is $90\times6 = 540$ square yards per hour.

Step2: Convert square yards per hour to square meters per hour

We know that 1 square meter $\approx1.2$ square yards, so to convert square yards to square meters, we divide by 1.2. So the rate in square meters per hour is $\frac{540}{1.2}=450$.

Answer:

450