Lung drove at a speed of 45 miles per hour for 225 miles. How many hours did she drive?

She drove 5 hours you needed to divide 225 miles by 45 miles per hour then you get 5 hours that she drived.

Formula

d = r * t

d = distance

r = speed or rate of travel

t = time taken to travel

Givens

d = 225 miles

r = 45 miles / hour

t = ?

Substitute

d = r * t

225 miles = 45mph * t

225 / 45 = t

t = 5

Answer: She was on the road for 5 hours