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Lesson 6-1 Understanding Percents

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Obj: To model percents and to write percents using equivalent ratios HWK: p 276-277 1-9 all 15-30 all Vocab: 1) percent

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2 ways to change Fraction to Percent (%) 1) Write as an equivalent fraction with a denominator of 100 – the new numerator is your %. 2) Divide denominator into numerator, add decimal and 0’s until terminates or repeats. Then change decimal to % by moving decimal right 2 digits.

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Ex 1) The floor plan shows a bedroom with an area of 100 ft². Find the percent of floor space needed for each piece of furniture. Bed = Desk = Bureau = Desk Bed Bureau 10 ft

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Ex 2) Write a ratio and a percent to represent the unused floor space.

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Write a ratio and a percent for each shaded area Ex 3) Ex 4) Ex 5)

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Ex 6) You take a quiz that has 20 questions and get only 3 incorrect answers. What is your percent grade on the quiz?

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