Justin rode his bike 9 1/2 miles in 2/3 of an hour. How many miles can he ride in 1 hour at this rate?

Question

I need help on this question!!!

Answer 1

It is very important, but not adequately taught, that units be included:

     (miles per hour)*(hours) = miles     [because hours cancel]

 

So,

  ((9 1/2 miles) / (2/3 hours)) * (1 hour)             ["per" means "/"]

  ((19/2 miles) / (2/3 hours)) * (1 hour)             [convert to improper fraction]

  (19/2)*(3/2) * 1 mile              [to divide by fraction, invert and multiply]

  57/4 miles

   14 1/4 miles                    [convert to mixed number]

Answer 2

(9 1/2) / (2/3)= x /1 Solve for x