45 minutes = 3/4 hour
so the cyclist's average speed is
(9 miles) / (45 minutes) = (9 miles) / (3/4 hour) = 36/3 mph = 12 mph
.394= 197/500
you can't make it a mixed number since there isn't a whole number as with an improper fraction.
Answer:
7.28937 x 10¹¹
Step-by-step explanation:
728,937,000,000
= 7.28937 x 100,000,000,000
= 7.28937 x 10¹¹
3 is the answer
