Answer:
27 minutes
Step-by-step explanation:
If it takes a 150-pound person 6.8 calories a minute walking at a speed of 4 mph, then divide 180 calories by 6.8 calories to see how many times 6.8 calaries go into 180 calories.
[tex]\frac{180}{6.8} = 26.47058823529118[/tex]
Then round it up to get 27
