Mark weighs 254 pounds and would like to lose weight.He starts a walking program that expends 1.2 kcal/pound/hour.If he walks 45 minutes a day for one week,how many Calories will he burn in one week?
A) 800 kcal
B) 1,200 kcal
C) 1,600 kcal
D) 1,800 kcal

Question

Quizplus · Accepted Answer

First, let's calculate how many calories Mark would burn per day.

1. Convert Mark's weight from pounds to kilograms:

254 pounds ÷ 2.2 = 115.45 kg

2. Calculate the calories burned per hour:

115.45 kg x 1.2 kcal/pound/hour = 138.54 kcal/hour

3. Calculate the calories burned in 45 minutes:

138.54 kcal/hour x 0.75 hours (45 minutes is 0.75 hours) = 103.91 kcal

So Mark will burn approximately 104 kcal per day through his walking program.

To find out how many calories he will burn in a week, we simply multiply that number by 7:

104 kcal/day x 7 days = 728 kcal/week

Therefore, the correct answer is C) 1,600 kcal.

Mark Weighs 254 Pounds and Would Like to Lose Weight