Question

A jet flew 2660 miles in 4.75 hours. What is the rate of speed in miles per hour? (The proportion would be 2660 : 4.75 ::X:1 Set the proportion in fractional form and proceed to find x.)​

Answer 1

X = 560

Explanation:

Speed = distance / time

Distance = 2660 miles

Time taken = 4.75 hours

Writing the equation in terms of proportion :

Rate or speed = Distance : time

Speed = 2660 : 4.75

Reducing to lowest term ;

Divide both sides by 4.75

Hence, we have ;

Speed = 2660/4.75 : 4.75/4.75

Speed = 560 : 1

Comparing with the proportion in the question, X = 560