Josh is choosing between two exercise routines.

In Routine #1, he does only running, burning 8.5 calories per minute.
In Routine #2, he burns 17 calories walking. He then runs at a rate that burns 4.25 calories per minute.
For what amounts of time spent running will Routine #1 burn at least as many calories as Routine #2?
Use t for the number of minutes spent running, and solve your inequality for t.

1 answer

8.5t >= 17+4.25t
4.25t >= 17
t >= 4
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