Boy is choosing between two exercise routines: In Routine

Shayla Massey

Shayla Massey

Answered question

2022-03-18

Boy is choosing between two exercise routines:
In Routine 1, he burns 30 calories walking. He then runs at a rate that burns 11.75 calories per minute.
In Routine 2, he does only running, burning 15.5 calories per minute.
For what amounts of time spent running will Routine 1 burn more calories than Routine 2? Use t for the number of minutes spent running, and solve for t.

Answer & Explanation

oighreacha12

oighreacha12

Beginner2022-03-19Added 3 answers

Let t be the number of minutes
Let y be the number of calories
Equation for routine 1
y1=11.75t+30
Equation for routine 2
y2=15.5t
Solve for t if y1>y2
11.75t+30>15.5t
30>15.5t11.75t
30>3.75t
303.75>t
8>t
t<8

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