Respuesta :
ANSWER
[tex]6mph[/tex]
EXPLANATION
At first Tenacious ran 12 miles in 2 hours.
The rate at which he ran is the same as his speed.
[tex] = \frac{12}{2} mph[/tex]
[tex] = 6mph[/tex]
Now Tenacious ran 36 miles in 3 hours,
His new rate is
[tex] = \frac{36}{3} mph[/tex]
[tex] = 12mph[/tex]
Tenacious' rate increased from 6mph to 12mph.
Hence his rate increased by 6mph
[tex]6mph[/tex]
EXPLANATION
At first Tenacious ran 12 miles in 2 hours.
The rate at which he ran is the same as his speed.
[tex] = \frac{12}{2} mph[/tex]
[tex] = 6mph[/tex]
Now Tenacious ran 36 miles in 3 hours,
His new rate is
[tex] = \frac{36}{3} mph[/tex]
[tex] = 12mph[/tex]
Tenacious' rate increased from 6mph to 12mph.
Hence his rate increased by 6mph
Answer:
6 miles per hour increase
Step-by-step 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