Posted by Kylie C. on .
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?
thx in advance =D

Mathamatics 
Reiny,
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 
Algebra 
Ann,
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? 
Mathamatics 
katherine,
37.50