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Mario was riding a bicycle with wheels 26 inches in diameter. During one minute of Mario’s ride, the wheels made exactly 200 revolutions. At what average speed, in feet per second, was Mario riding during that minute?

Respuesta :

arsalaanzahid

The correct answer is A.


Step - by - step answer:

Mario will travel a distance equal to 1 circumference of the wheel for each complete revolution of the wheel.

Circumference of Mario's wheel, C = πD, where D is the diameter of the circle.

Hence, C = 26Ï€ inches

Speed = Distance / Time

Distance for 200 revolutions in ft = 26Ï€ x 200 x 1/12

Time in sec = 60

So, speed =  (26π x 200)/(12 x 60)

= 65Ï€/9

=22.69 is the average speed.

P.s: Answer is copied from https://www.myactguide.com/math/mario-was-riding-a-bicycle-with-wheels-26-inches-in-diameter

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