the question is:

Question

jim ran a mile in 3 min and 43 seconds how fast was his avrage speed. what was his avg. speed if the time was 353

Answer 1

3 minutes = 180 seconds; 3 min and 43 seconds = 180 + 43 = ??

Average speed in relation to what? You already know miles per hour: 3 43/60 mph.