4.2 Rates
Rates
Who is the fastest runner? Which one is the best buy? Learn how to find the unit rate and unit price to answer these questions. This lesson is very useful to our daily life.
Basic concepts:
 Multiplying decimal numbers
 Dividing decimal numbers
Lessons

1.
Find the unit rate.

2.
Find the unit price and identify the best buy.

3.
Runner
Distance (km)
Time (min)
Ann
15
90
Katie
2
120
Dora
3
180