Question

Sasha walks at a constant rate. She meets her friend Hannah 0.6 kilometer along the way, and thet continue walking at the same constant rate. When thay get to school, Sasha has walked for 0.6 hour and Hannah has walked 0.45 hour. What is the rate in kilograms per hour at which they walked to school

Answer 1

4 km/hr

Explanation:

Sasha walks at a constant rate. She meets her friend Hannah 0.6 kilometer along the way, and they continue walking at the same constant rate. When thay get to school, Sasha has walked for 0.6 hour and Hannah has walked 0.45 hour.

Let

the rate of the speed at which they walked to school be represented by r

Distance to school for Sasha = Distance to school for Hannah

Distance = Speed (rate × time)

Hence:

0.6r = 0.45r + 0.6

Collect like terms

0.6r - 0.45r = 0.6

0.15r = 0.6

r = 0.6/0.15

r = 4 km/hr

The rate in Kilometer per hour at which they walked to school is 4km/hr