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A bowling ball has a diameter of 8.5 inches. If it is rolled down a 60-foot bowling lane, how many complete revolutions will it make? Round to the nearest tenth.

Worth 25 points!!

Respuesta :

Answer:

27 revolutions

Step-by-step explanation:

Things to remember :

  • One revolution = distance of circumference covered
  • circumference = 2πr
  • diameter = 2 x radius

Solving

  • One revolution = 2 x π x d/2 = πd
  • One revolution = 3.14 x 8.5
  • One revolution = 26.69 inches
  • No. of revolutions = Distance / one revolution
  • No. of revolutions = 60 x 12 / 26.69
  • No. of revolutions = 720 / 26.69
  • No. of revolutions = 27 revolutions
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