contestada

Athlete J runs 2/3 of a mile in 8 minutes. Athlete H runs 2 3/4 miles in 1/2 hour.
1: If Athlete J continues at that speed, how long will it take to run one mile?
2: How long will it take Athlete J to run 5 miles at that same speed?
3: Who runs faster, J or H? Why?

Respuesta :

The number of minutes it would take Athlete J to run one mile is 12 minutes.

The number of hours it would take Athlete h to run 5 miles is 10/11 hour.

Athlete h runs faster because his average speed is greater than that of  Athlete J.

In order to determine the time it would take Athlete J to run one mile, the average speed has to be determined.

Average speed = total distance / time

2/3 ÷ 8

2/3 x 1/8 = 1/12 mile / minute

Time it would take Athlete J to run one mile = distance / speed

1 ÷ 1/12 = 12 minutes

Average speed of Athlete H = 2 3/4 ÷ 1/2

11/4 x 2 = 5 1/2 miles / hour

Time it would take Athlete H to run 5 miles = distance / speed

5  ÷ 11/2

5 x 2/11 = 10/11 hours

To learn more about average speed, please check: brainly.com/question/9834403

Otras preguntas