Question

Amber rides m miles in h hours according to the equation m=2h. Which of the following represents the unit rate for her miles per hour?

Answer 1

The unit rate for her riding in miles per hour is given by 2 miles per hour.

Explanation:

Amber rides m miles in h hours according to the equation m=2h .......... (1)

Putting h = 1 hour, we get m = 2 miles.

Therefore, Amber rides 2 miles height within a period of time 1 hour.

Therefore, the unit rate for her riding in miles per hour is given by 2 miles per hour. (Answer)

Again, differentiating equation (1) with respect to h we get,

`(dm)/(dh) = 2` miles per hour.

So, here also we get the unit rate of her riding is 2 miles/hr.