Please Help me!!
John is participating in a triathlon. He swims a rate of 2 mph and runs at a rate of 6 mph. The course is broken down in the following manner: Leg 1- Swim 6 miles, Leg 2- Run 15 miles, Leg 3- Bike 18 miles. How fast will John have to bike to finish the triathlon in exactly 7 hours?
Answers:
A. 6 mph B. 9 mph C. 12 mph D. 18 mph E. 27 mph
*Also explain how you got your answer also

Respuesta :

The answer would be E= 27 miles
You would start out by figuring out how many hours it would take him to swim by dividing 6/2 to get 3 then you would find out how long it would take him to run by dividing 15/6 to get 2.5 and you would add that to the 3 to get 5.5 and subtract that by 7 to get 1.5 which is how long he will have to complete leg 3 so you would take 18x1.5 to get 27 mph