You have 40 minutes to exercise at the gym, and you want to burn 300 calories total using both machines. how much time should you spend on each machine?

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation:

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)