Question

Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina's

rate in miles per hour if there are 5,280 feet in a mile?
Which girl bikes faster?
What is Nina’s rate in miles per hour if there are 5,280 feet in a mile?

Answer 1

Guy above me is right

Explanation:

i did test

Answer 2

3600 seconds = 1 hour

Then

3400 seconds = 3400/3600

= 17/18 hours

5280 feet = 1 mile

Then

63360 feet = 63360/5280 mile

= 12 mile

So

Distance covered by Nina in 17/18 hours = 12 mile

Then

Distance covered by Nina in 1 hour = 12/(17/18) miles

= 12.71 miles.

Explanation:

the speed of Nina is 12.71 miles per hour.

Speed of Sophia is 10 miles per hour. So Nina is the girl that rides at a faster speed.