Answer:
her average speed is 16 miles per hour
Step-by-step explanation:
do 48 divided by 3 = 16
My English is not that great but if I got it right the answer is 3
$ per min is a rate. you multiple by minutes to get dollars.
A = 10x
B = 5x + 20
set them equal to find minutes, x.
10x = 5x + 20
10x - 5x = 20
5x = 20
x = 4
