Question

Julio walks 3 1/2 miles in 1 1/4 hours. What the unit rate?

Answer 1

3 1/2 ÷ 1 1/4
7/2 ÷ 5/4
7/2 · 4/5
28/10
2.8
Julio walks 2.8 miles in one hour.

Answer 2

Answer:
`2(4)/(5)\text{ miles per hour}`

Explanation:

Given :- Julio walks
`3(1)/(2)` miles in
`1(1)/(4)` hours.

first convert distance and time in improper fraction.

Distance=
`3(1)/(2)=(7)/(2)` miles

Time taken=
`1(1)/(4)=(5)/(4)` hours

Now, the unit rates=

`\frac{\text{Distance}}{\text{Time}}\\=((7)/(2))/((5)/(4))=(7)/(2)*(4)/(5)\\=(14)/(5)\\=2(4)/(5)\text{ miles per hour}`

⇒ Julio walks
`2(4)/(5)\text{ miles}` in 1 hour.