Question

Martha ran a 5 kilometer race in 22.5 minutes what was Martha’s unit rate?

Answer 1

Step-by-step explanation:

Unit rate = distance travelled per unit time

First we covert all data in SI units

Martha ran 5 km in 22.5 minutes

Here

Distance = 5 km

& 1 km = 1000 meters

So 5 km = 5 × 1000 = 5000 m

Time taken = 22.5 minutes

& 1 min = 60 sec

So 22.5 minutes = 22.5 × 60 = 1350 sec

Martha's unit rate =>

5000 m............ In.... 1350 sec

1 m......... In.... 5000/1350

So

Unit rate =>

1 m in 5000/1350 sec

= 100/27 m per sec