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-Dominant- [34]

3 years ago

12

A 150-pound person uses 5.1 calories per minute when walking at a speed of 4 mph. How long must a person walk at this speed to

use at least 180 calories?
A person must walk for at least
_____minutes in order to use at least 180 calories.
(Round up to the nearest minute.)

1 answer:

wolverine [178]3 years ago

6 0

Let 't' represent the time of the walk in minutes.

5.1*t = 220

t = 43.14 min

The person needs to walk at least 43.14 minutes to but at least 220 calories.

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