When James spent 10 minutes doing push-ups and 50 minutes swimming, his fitness app said that he burned 447 calories. Similarly, when he spent 30 minutes doing push-ups and 169 minutes swimming, the app said that he burned 1487 calories. Let p and s represent the calories per minute that James burns while doing push-ups and sit-ups, respectively. Write a system of equations to describe the situation above. A) Enter the equations below, separated by a comma.
B) How many calories per minute does James burn while doing push ups? Round you answer to on decimal place.
C) How many calories per minute did James burn while swimming? Round you answer to on decimal place.​