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**Multiplication and Division Inequalities with Positive Numbers**

13.3 Multiplication and Division Inequalities with Positive Numbers How can you solve an inequality involving multiplication or division with positive numbers?

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ADDITIONAL EXAMPLE 1 Solve each inequality. Graph and check the solution. A B

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ADDITIONAL EXAMPLE 2 Kayla earned more than $50 babysitting. Her mother paid her $4 an hour to babysit her little brother. Write and solve an inequality to find the possible number of hours Kayla babysat. 4h > 50; h > 12.5; Kayla babysat more than 12.5 hours.

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**13.3 LESSON QUIZ Solve each inequality. Graph and check the solution.**

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**Solve each inequality. Graph and check the solution.**

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**Write and solve an inequality for each problem.**

5. Kellin pays more than $40 a day to rent a canoe. What amount might he pay to rent the canoe for a 7-day trip? 6. Amanda earns $15 an hour. She needs at least $90 to buy a computer desk. How many hours does she need to work to buy the desk?

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**How can you solve an inequality involving multiplication or division with positive numbers?**

Sample answer: You can use the Multiplication and Division Properties of Inequality: multiply or divide each side by the same positive amount to isolate the variable.

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