7-5 Fractions, Decimals, and Percents (pgs 312-315) 7-6 Percents Greater than 100 and Less than 1% (pgs 316-318)

1
7-5 Fractions, Decimals, and Percents (pgs
312-315)7-6 Percents Greater than 100 and Less
than 1 (pgs 316-318)

• Indicator N7 Solve Problems using percents

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Changing percents to decimals

• Divide by 100
• (Move the decimal 2 spaces to the left)
• 245 2.45
• 0.075 0.00075

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You Try

• 256.5
• 2.565
• 0.06
• 0.0006

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Changing Percents to Fractions

• Easy one (review)
• 14 is 14 7
• 100 50 (reduce by the GCF 2)
• Harder
• 6.5 is 6.5 x10 65 13
• 100x10 1000 200
• Hardest
• 10 ¾ is 10 ¾ 43 x 1 43
• 100 4 100 400

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• You Try
• Change the percents to fractions
• 0.06 2) 250 3) 30 1/3
• 3 2 ½ 91
• 5000 300

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Write a decimal as a percent

• You multiply by 100
• (moves decimal 2 spaces to the right)
• 0.0085 0. 85
• 1 100
• 3) 42 4200

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Changing fractions to percents

• Change to fraction to a decimal first then
  multiply by 100
• 3 ¾ 3.75 375
• 1 0.002 0.2
• 500

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Review of solving percent equations

• Of (x) Is () What (n)
• What percent of 45 2
• n 45 2
• 45 45
• n 0.04 or 4.4