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Indicator N7 – Solve Problems using percents

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. Changing percents to decimals. Divide by 100 (Move the decimal 2 spaces to the left) 245% = 2.45 0.075% = 0.00075. You Try.

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Indicator N7 – Solve Problems using percents

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  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

  2. Changing percents to decimals • Divide by 100 (Move the decimal 2 spaces to the left) • 245% = 2.45 • 0.075% = 0.00075

  3. You Try • 256.5% 2.565 • 0.06% 0.0006

  4. 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

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

  6. 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%

  7. 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

  8. 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%

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