# Rates

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##### Intros
###### Lessons
1. Ratios, Rates, and Proportions
• What are they?
• How are they different from each other?
2. Unit rates
• What is a unit rate?
• How to find the unit rate?
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##### Examples
###### Lessons
1. Find the unit rate.
1. $4.50 for 2 lb of broccoli. 2. 5 pizzas for 12 people. 3. 2 goals in a 90 minute long soccer game. 2. Find the unit price and identify the best buy. 1.  No. of Units Total Price Unit Price 250 ml$3.50 400 ml $4.50 550 ml$6.60
2.  No. of Units Total Price Unit Price 300 g $5.20 550 g$9.20 1 kg \$15.50
3.  Runner Distance (km) Time (min) Ann 15 90 Katie 2 120 Dora 3 180
1. Determine the distance each runner ran per minute.
2. Express your answers in part a) in km/h.
3. Who is the fastest runner?
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##### Practice
###### Topic Notes
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.