Question

Terrance and Jesse are training for a long-distance race. Terrace trains at a rate of 6 miles every half hour, so his unit rate is 12 miles per hour, and Jesse trains at a rate of 2 miles every 15 minutes, so his unit rate is 8 miles per hour. Sandra runs at the rate of 8 miles in 45 minutes. How does her unit rate compare to Terrance's and to Jesse?

Answer 1

well if you know the unit rates

12 mph=Terrance

8 mph=Jesse

so to find Sandra just simplify

(8*60)/(45*1)(miles/hour

= (480/45)mph)

so 10 2/3 miles per hour

hope I was helpful