Isabel is choosing between two exercise routines. In Routine #1, she does only running, burning 10.5 calories per minute.
In Routine #2, she burns 19 calories walking. She then runs at a rate that burns 5.75 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 your inequality for t.