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1 vote
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?

User Pcoving
by
8.2k points

2 Answers

1 vote

Answer:12.7

Explanation:

User Sarath Kumar
by
8.7k points
3 votes

Answer:

Nina's rate is 12.7059 miles per hour (answer rounded up to four decimal places).

Explanation:

Nina can ride her bike 63,360 feet in 3400 sec

1 mile = 5,280 feet

How many miles = 63,360 feet ?

Its 63,360 feet ÷ 5,280 feet × 1 mile = 12 miles

Nina's rate is 12 miles per 3400 seconds

1 hour = 3600 seconds

So in 1 hour, Nina rides
(3600)/(3400) × 12 miles = 12.7059 miles (rounded up to four decimal places)

Nina's rate is 12.7059 miles per hour (answer rounded up to four decimal places).

User Miro Hudak
by
8.7k points
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