Question

Danielle needs to walk 4 miles. If she wants to reach her destination in 50 minutes ( hour), how fast does she need to walk?

A.200 miles per hour
B.4.8 miles per hour
C.12.5 miles per hour
D.3.3 miles per hour

Answer 1

Speed = distance/time
Speed = 50/4
Speed = 12.5
Your answer is C!!!

Answer 2

B. 4.8 miles per hour

Explanation:

We are given that,

Distance needed to walk by Danielle = 4 miles

Time needed to reach the destination = 50 minutes = 0.83 miles

It is required to find the speed needed by Danielle.

Since, we know,

`Speed=(Distance)/(Time)`

i.e.
`Speed=(4)/(0.83)`

i.e. Speed = 4.8 miles per hour

Hence, she needs to walk 4.8 miles per hour to reach her destination.