Question

Tenacious ran 12 miles in 2 hours. then he ran 36 miles in 3 hours. by how much did his rate increase

Answer 1

ANSWER


`6mph`

EXPLANATION

At first Tenacious ran 12 miles in 2 hours.


The rate at which he ran is the same as his speed.


`= (12)/(2) mph`

`= 6mph`


Now Tenacious ran 36 miles in 3 hours,


His new rate is


`= (36)/(3) mph`


`= 12mph`


Tenacious' rate increased from 6mph to 12mph.

Hence his rate increased by 6mph

Answer 2

6 miles per hour increase

Explanation:

12 miles in 2 hours is 12/2 = 6 miles per hour

36 miles in 3 hours 36/3 = 12 miles per hour

Take the 2nd rate and subtract the first rate

12 - 6 = 6 miles per hour increase