Chloe drives from her house to her grandma's house 64 miles away in an hour and 35 minutes. How fast was she driving on average?

A. About 53 mph
B. About 40 mph
C. About 30 mph
D. About 47 mph

B) 40 miles per hour

Step-by-step explanation:

Each twelve minutes is 1/5 hr = 0.2 hr

Total time is therefore 1 hr+ 0.2hr = 1.2hr

Vavge = 48 miles / 1.2 hr = 40 miles/hr

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated