Question

sara walks 4 miles every day. on average, she burns 65 calories per mile. she wants to burn more calories, so she wears a 5 - lb. weighted vest while walking. the addition of the weighted vest adds 25 more calories per mile. how many calories will sara burn wearing the weighted vest? 100 calories 100 calories 200 calories 360 calories

Explanation:

Step1: Calculate calories burned without weighted - vest per day

She walks 4 miles a day and burns 65 calories per mile without the weighted vest. So the calories burned without the vest is $4\times65 = 260$ calories.

Step2: Calculate extra calories burned with weighted - vest

The weighted vest adds 25 more calories per mile. For 4 miles, the extra calories burned is $4\times25=100$ calories.

Step3: Calculate total calories burned with weighted - vest

Add the calories burned without the vest and the extra calories from the vest. So the total is $260 + 100=360$ calories.

Answer:

360 calories