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Kay [80]
3 years ago
6

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 m

ost reasonable for James to use to find out his walking speed in miles per hour?
Mathematics
2 answers:
Inessa05 [86]3 years ago
4 0

Answer:

James can walk 3.75 miles per hour

Step-by-step explanation:

We can use conversion factors to determine the walking speed of James in miles per hour.

James takes 120 steps/minute with each step 2.75 feet long.

∴ If one step is equal to 2.75 feet then 120 steps per minute is:

= 2.75 (feet/step) × 120(steps/minute)

Where steps cancel out and you are left with:

= 330 feet/minute

1 Foot is equal to 0.00018939 miles. Therefore we can determined miles per hour as:

= (330 feet/minute) × (0.00018939miles/foot) × (60 minutes/1 hour)

Feet cancels out with the foot and minutes cancel out with minutes and you are left with:

= 3.75 miles/hour

mafiozo [28]3 years ago
3 0
Speed=120step/min=720step/h
Distance=720step/h×2.75feet/step=1980feet/h=0.375miles/h
So the answer is: he can walking 0.375miles per hour

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