Question

if Jeremey can row
`(3)/(8)`of a mile in
`(1)/(4)`of an hour what is the unit rate that describes the miles per hour

Answer 1

Jeremey can row 3/8 of a mile in 1/4 of an hour. To find the unit rate, we need to find how many miles he can row in 1 hour. To find it, we can use the next proportion:

`\frac{(3)/(8)\text{ miles}}{x\text{ miles}}=\frac{(1)/(4)\text{ hour}}{1\text{ hour}}`

Solving for x:

`\begin{gathered} (3)/(8)\cdot1=(1)/(4)\cdot x \\ (3)/(8)\cdot4=x \\ (3)/(2)\text{ miles = x} \end{gathered}`

The unit rate is 3/2 miles per hour