3 years ago

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

Then its circumference is

C = 2πx

a) Solving for x

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

It makes the distance of

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

Speed = d/t

Speed is:

226.2/2 = 113 inches/second

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