Question

Christine is riding her bicycle. She rides for 11.2 kilometers at a speed of 7 kilometers per hour. For how many hours does she ride?

Answer 1

`1.6\ hours`

Explanation:

we know that

She rides for 11.2 kilometers at a speed of 7 kilometers per hour

Using proportion

Find how many hours does she ride

`(7)/(1)(km)/(h) =(11.2)/(x)(km)/(h)\\ \\x=11.2/7\\ \\x=1.6\ hours`