Transcript
![Page 1: Solving Inequalities with Multiplication and Division](https://reader035.vdocuments.us/reader035/viewer/2022081809/5697bf791a28abf838c827de/html5/thumbnails/1.jpg)
Solving Inequalities with Multiplication and Division
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Here is the Big Rule
• Big Rule- If you multiply or divide by a negative, you must switch the inequality
• Everything else is the same
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4x > 32
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Ex 1
65
x
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315
z
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Ex 2
5 20t
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6x + 3 > 33
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-3x – 5 < 23
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Real World
• An elevator can carry up to 2,500 lb. Suppose the weight of an average adult is 150 lb. At most how many average-sized adults can safely ride the elevator at the same time?
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With a partner
• Jessica is saving up to buy a new car. She needs to save at least 6 times more than she has already saved. How has she already saved if the car costs $24,000?
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Closure
• What is our very important rule??????