Question

A car is traveling at a speed of 44 feet per second. what is the car's speed in miles per hour? how many miles will the car travel in 4 hours? in your computations, use the fact that 1 mile is equal to 5280 feet

Answer 1

44ft/sec = 44/5280 divided by (1/3600 = 30 miles per hour

Distance traveled in 5 hrs = speed * time = 30 * 5 = 150 miles

Answer 2

44 feet. 3600 seconds. 1 mile
----------- ---------------------- -----------
1 second 1 hour. 5280 feet

I wrote it this way so the units cancel out. You are multiplying the fractions by each other

The car is going 30 mph, and will go 120 miles in 4 hours.