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Unit 1. Ratios and Proportional Relationships. ESSENTIAL QUESTION How can you use mathematics to describe change and model real-world situations?. Chapter 1. Ratios and Proportional Reasoning. ESSENTIAL QUESTION How can you show that two objects are proportional?. Lesson 1.1 Rates.
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Unit 1 Ratios and Proportional Relationships ESSENTIAL QUESTION How can you use mathematics to describe change and model real-world situations?
Chapter 1 Ratios and Proportional Reasoning ESSENTIAL QUESTION How can you show that two objects are proportional?
Lesson 1.1Rates • Ratio: A ratio can be used to compare _____ quantities. • A ratio can be written in 3 ways. For example: There are 10 boys and 13 girls in Ms. Kuper’s class. 1. 2. 3. • Rate: A rate is a ratio that compares ____ quantities with different kinds of units. For example: Miles per hour (mph)
Example 1. Adrienne biked 24 miles in 4 hours. If she biked at a constant speed, how many miles did she ride in one hour?
Find the unit rate. Round to the nearest hundredth if necessary. 1. 18 cans for $6
Find the unit price. 2. $2 for 8 juice boxes 3. 4-pack of mixed fruit sells for $2.12