Question

Re-write a unit rate for the situation. Round to the nearest hundredth if necessary. Driving 140 miles in 2 hours 45 minutes.

Answer 1

To simplify:

Convert the hours into minutes and add it onto the 45 minutes.

60+60+45=165

Divide distance by time to find unit rate:

140/165=0.848

Answer: About 0.85 miles per minute

Answer 2

2 hours 45 minutes = 2 3/4 hours

miles per hour =  140  / 2  3/4  =  140 /  11/4  = 140 * 4/11 =  50.91 mph to
nearest hundredth.