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4vir4ik [10]
3 years ago
12

30 points to HELP PLEASE and THANK U

Mathematics
2 answers:
allsm [11]3 years ago
6 0

Answer:

36960in per minute

Step-by-step explanation:

Anuta_ua [19.1K]3 years ago
6 0

Answer:

  • a) 6 inches
  • b) 113 inches per second

Step-by-step explanation:

Let the child bicycle wheel radius be x

<u>Then its circumference is</u>

  • C = 2πx

a) <u>Solving for x</u>

  • 37.7 = 2*3.14x
  • x = 37.7/6.28
  • x = 6.0 in

b) Mountain bicycle has twice the circumference of a child bicycle

In 2 seconds it makes 3 revolutions

<u>It makes the distance of </u>

  • d = 3*2*37.7 = 226.2 inches in t = 2 seconds

<em>Speed = d/t</em>

<u>Speed is:</u>

  • 226.2/2 = 113 inches/second

 

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