Mr. Jones grades 12 exams
2 answers:
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Part 1: The right answer is Option B.
Part 2: The right answer is Option B.
Step-by-step explanation:
Given,
1 hour = 120 calories
Part 1: How many calories are burned per minute when walking on a treadmill?
1 hour = 120 calories
1 hour = 60 minutes
Therefore,
60 minutes = 120 calories
1 minute =
2 calories are burned per minute.
The right answer is Option B.
Part 2: Assuming you walk at a constant rate and burn 120 calories per hour, how many minutes will it take to burn 75 calories.
From part 1;
1 minute = 2 calories
1 calorie =
75 calories = 75*0.5 = 37.5 minutes
The right answer is Option B.
Keywords: multiplication, division
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