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
A person must walk for at least minutes in order to use at least 150 calories.
(Round up to the nearest minute.)

Respuesta :

Answer:

30 minutes

Step-by-step explanation:

set 5.1/1 = 150/x

solve for x