'3a solving proportions' presentation slideshows

Geometry Chapter 7

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Write and simplify ratios. Use proportions to solve problems.

Objectives. Write and simplify ratios. Use proportions to solve problems. Remember!. In a ratio, the denominator of the fraction cannot be zero because division by zero is undefined. A ratio compares two numbers by division. The ratio of two numbers a and b can be written as

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Warm Up Find the slope of the line through each pair of points. 1. (1, 5) and (3, 9)

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7-1

7-1. Ratio and Proportion. Holt Geometry.

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Warm Up(On a Separate Sheet) Find the slope of the line through each pair of points.

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