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Warmup Problems for 11/2

Warmup Problems for 11/2. Answers for page 120 #8-15, 22-23. 3.5: Solving Proportions. Solving Proportions. Some proportions are easy to solve mentally. We use what we know about equivalent fractions to solve them. For example:. Solving Proportions.

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Warmup Problems for 11/2

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  1. Warmup Problems for 11/2

  2. Answers for page 120 #8-15, 22-23

  3. 3.5: Solving Proportions

  4. Solving Proportions • Some proportions are easy to solve mentally. We use what we know about equivalent fractions to solve them. For example:

  5. Solving Proportions • Other proportions are not easy to solve mentally. For example:

  6. How to Solve Proportions using the Multiplication Property of Equality • We can use the MPoE to solve any proportion. For example: • Starting with this equation: • Multiply both sides by 8.4 and x: • Simplify: • Simplify again: • Solve by dividing:

  7. We need a shortcut! • When we solved Which two numbers did we end up multiplying? Which number did we divide by? What’s the shortcut?

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