SOLUTION: In routine #1, she does only running, burning 10.5 calories per minute. In routine #2 she burns 22 calories walking. she then runs at a rate that burns 7.75 calories per minute. fo

Algebra ->  Linear-equations -> SOLUTION: In routine #1, she does only running, burning 10.5 calories per minute. In routine #2 she burns 22 calories walking. she then runs at a rate that burns 7.75 calories per minute. fo      Log On


   



Question 1180087: In routine #1, she does only running, burning 10.5 calories per minute. In routine #2 she burns 22 calories walking. she then runs at a rate that burns 7.75 calories per minute. for what amounts of time spend running will routine #1 burn at least as many calories as routine #2?
Answer by greenestamps(13206) About Me  (Show Source):
You can put this solution on YOUR website!


Calories burned in t minutes of running doing routine #1: 10.5t

Calories burned in t minutes of running doing routine #2: 22+7.75t

"For what amounts of time spent running will routine #1 burn at least as many calories as routine #2?"

10.5t >= 22+7.75t

Solve using basic algebra....