The ratio of boys to girls is 5 to 4. If there are 60 girls in gym class, how many boys are there?

There would be 75.

x/60 = 5/4

To determine the number of boys, let's first calculate the total number of students in the gym class.

Given that the ratio of boys to girls is 5 to 4, we can represent the ratio as 5x to 4x, where x is a constant.

Since we know that there are 60 girls in the gym class, we can set up the following equation:

4x = 60

To find the value of x, we divide both sides of the equation by 4:

4x/4 = 60/4
x = 15

Now that we have the value of x, we can calculate the number of boys:

5x = 5 * 15 = 75

Therefore, there are 75 boys in gym class.