angelashen1234
contestada

Samuel was preparing for the triathlon. He did 3 activities every morning: Ran for 30 minutes, covering 4.5 miles. Swam for 20 minutes, covering 2/3 mi. biked for 45 min, covering 9 miles. What was Samuel's average speed during his morning training?
PLEASE HELP!!!

Respuesta :

mhanifa

Answer:

  • ≈ 0.15 miles per minute

Step-by-step explanation:

Speed = distance / time

Let's find total distance and time

Distance

  • 4.5 + 2/3 + 9 = 45/10 + 2/3 + 9 = 9/2 + 2/3 + 9 = (27 +  4 + 54)/6 = 85/6

Time

  • 30 min + 20 min + 45 min = 95 min

Average speed

  • 85/ 6 ÷ 95 = 85/6*1/95 = 17/114 ≈ 0.15 miles per minute

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