A 150-pound person uses 6.7 6.7 calories per minute when walking at a speed of 4 mph. how long must a person walk at this speed to use at least 170 170 calories? a person must walk for at least nothing minutes in order to use at least 170 170 calories. (round up to the nearest minute.) enter your answer in the answer box.

A person must walk for 25.37 minutes in order to use 170 calories.

Step-by-step explanation:

A 150-pound person uses 6.7 calories per minute when walking at a speed of 4 mph.

Let the person takes x minutes to walk at this speed.

So, the time needed to burn 170 calories is given by:

Solving for x, we get;

x = 25.37 minutes

Hence, A person must walk for 25.37 minutes in order to use 170 calories.

40 minutes

step-by-step explanation:

add the time and multiply by 2