Question

The function () = 40x represents the number of jumping jacks j(x) you can do in x minutes. How many jumping jacks can you do in 10 minutes?

a. 150 jumping jacks
b. 400 jumping jacks
c. 4 jumping jacks
d. 250 jumping jacks

Answer 1

Using the function j(x) = 40x, substituting the value of x as 10 minutes, the calculation results in 400 jumping jacks.

Step-by-step explanation:

To determine the number of jumping jacks you can do in 10 minutes using the function j(x) = 40x, simply substitute the value of x with 10 and calculate:

j(10) = 40 * 10 = 400 jumping jacks.

Therefore, in 10 minutes, you can do 400 jumping jacks.