# Mathamatics

The diameter of each tire on Niki's bike is 66 centimeters (cm). It takes her 16 minutes to ride 10 kilometers (km).

How fast did Niki ride, in kilometers per hour?

1. 👍 0
2. 👎 0
3. 👁 129
1. Did you realize that the size of Niki's bike is irrelevant?

Since Rate = Distance/ time
Rate = 10/(16/60) km/h = 37.5 km/h

1. 👍 0
2. 👎 0
2. The diameter of each tire on Niki's bike is 66 centimeters (cm). It takes her 16 minutes to ride 10 kilometers (km).
How fast did Niki ride, in kilometers per hour?

1. 👍 0
2. 👎 0
3. 37.50

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Precalculus

Please help...a computerized spin balance machine rotates a 25 inch diameter tire at 480 revolutions per minute. (a) find the road speed in miles per hour at which the tire is being balanced (b) at what rate should the spin

2. ### Math

A model car has a scale factor of 1/64 The diameter of a tire on the model is 0.42 inches the diameter of the tire on an actual car must be _ inches

3. ### Math

The diameter of a tire is 2.5 ft. What is the circumference of the tire? About how many times will thee tire have to rotate to travel in 1 mile? 5280 ft. A. 5 ft? B. 1,056ft???

4. ### Math

A model car has a scale factor of 1/64.The diameter of a tire on the model is 0.4 inches. What is the diameter of a tire on the actual car?

1. ### physics

You are riding your bike and the tire has a radius of 0.33 m and mass 1.5 kg rotating at 98.7 rad/s. You just notice you are just seconds to riding off a cliff what torque will you need to stop the tire in 2.0 s before you find

2. ### Math

Jerrod's bike has a tire diameter of 26 inches. How far will the bike travel in 100 rotations of its tires?

3. ### Physics, Mathematics

A physicist rides his bike around a corner of radius 24 meters at a steady speed of 7.4 m/sec. The combined mass of the physicist and the bike is 91 kg. The coefficient of static friction between the bike and the road is μs =

4. ### Math

the question is "Joe rode his bike over a piece of gum. Joe continued riding his bike at a constant rate. At time t=1.25 seconds the gum was at a maximum height above the ground and 1 second later the gum was at a minimum. If the

1. ### math

1. A cylinder has a volume of 375 cubic centimeters. The radius of the cylinder is 12.5 centimeters. What is the approximate height of the cylinder? A. 9.6 centimeters B. 7.5 centimeters C. 2.4 centimeters** D. 0.8 centimeter 2. A

2. ### physics

a) calculate the acceleration of a 0.55-m-diameter car tire while the car is traveling at a constant speed of 25m/sec. b) compare this with acceleration experienced by a jet car tire of diameter 1.0m when setting a land speed

3. ### Math

If the diameter of a monster truck tire is 3.5 m and it makes one rotation every 5 seconds, how far does the tire roll in 1 minute? Diameter 3.5 radius: 3.5/2 = 1.75 12(2pi x 1.75) =131.9 m the book states that its 263.89 m? What

4. ### Math

A bicycle tire rim has a diameter of 24.5 inches, and the tire is 2.25 inches thick. Find the circumference of the outside of the tire.