Question

Walking on the treadmill burns 120 calories per hour. How many minutes will Mr. James need to walk on the treadmill to burn 75 calories? (Hint:
Remember that there are 60 minutes in 1 hour!)

Answer 1

To find out how many minutes Mr. James needs to walk on the treadmill to burn 75 calories, we can use the following steps:

1. First, determine how many calories are burned per minute. Since there are 60 minutes in an hour and Mr. James burns 120 calories in one hour, we can calculate the calories burned per minute as follows:

\[
\text{Calories per minute} = \frac{\text{Calories per hour}}{60 \text{ minutes}} = \frac{120 \text{ calories}}{60 \text{ minutes}} = 2 \text{ calories per minute}
\]

2. Now, to find out how many minutes it takes to burn 75 calories, we can use the formula:

\[
\text{Minutes needed} = \frac{\text{Total Calories to burn}}{\text{Calories burned per minute}} = \frac{75 \text{ calories}}{2 \text{ calories per minute}} = 37.5 \text{ minutes}
\]

Therefore, Mr. James will need to walk on the treadmill for **37.5 minutes** to burn 75 calories.