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James knows that when he walks, he takes about 120 steps per minute and that each step is 2.75 feet long. which calculation is most reasonable for james to use to find out his walking speed in miles per hour?

Respuesta :

Apocrophon
 steps  to  miles
minute      hour

120 steps * 2.75 ft = 330 ft * 1 mile   = 1 mile * 60 min = 15 miles
    1 min      1 step      min     5280 ft    16 min   1 hour       4 hr

The speed is 15/4 or 3.75 mph

Answer:

speed of James is: 3.75 miles/hour.

Step-by-step explanation:

We need to find the speed of James in miles per hour(mi/hr)

we know that 1 mile=5280 feet

James takes 120 steps in 1 minute so he will cover 120×60 steps in 1 hour.

i.e. he takes 7200 steps in 1 hour.

also each step of James=2.75 feet

total distance covered by James in 1 hour=2.75×7200 feet=19800 feet

[tex]19800 feet=\frac{19800}{5280} miles=3.75miles[/tex]

hence speed of James= (distance covered by james in 1 hour)/1 hour

  speed of James=3.75 miles/hour.


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