Study the example showing how a double number line is used to find rate and unit rates. Then solve problems 1-6.
Example
The double number line below shows the relationship between the numbers of hours and weeks Linda works. Linda worked 320 hours in 8 weeks.
The ratio of hours to weeks is 320 to 8
The rate is 40 hours to 1 week. The unit rate is 40 .
1. Choose a corresponding pair of numbers from the top and bottom number lines. Write a multiplication equation to show how the number of weeks and hours are related.
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2. Use words to describe the relationship between corresponding numbers of hours and weeks.
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3. Explain how you can use the answer to problem 2 to verify the unit rate is 40 .
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