Question

An in-line skater, who is the same weight as the student in Exercise 40 , burns 387 calories in 90 minutes. How many calories does the in-line skater burn per minute?

Short answer

The in-line skater burns approximately 4.3 calories per minute.

Step-by-step solution

Identify the given information

The given information in this problem is that an in-line skater burns 387 calories in 90 minutes. To find out how many calories the skater burns per minute, we have to divide the total number of calories by the total number of minutes.

Setup the formula

The formula for calculating calories per minute is: \(\frac{{\text{{total calories}}}}{{\text{{total minutes}}}}\). In our case, the total calories are 387 and the total minutes are 90.

Perform the division

Substituting the values into the formula, we get \(\frac{{387}}{{90}} = 4.3\). Therefore, the in-line skater burns approximately 4.3 calories per minute.