Unit 6. Day ppt download

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Today’s Lesson 1) Review three forms 2) Word problems
Example B: What percent of 40 is 32 Example C: 16 is 36% of what number
𝑥 = = = 100 𝑥. 100𝑥 = 10 𝑥. 10𝑥 = 𝑥 = 𝑥 ∙5∙7 2∙2∙5∙ = = − What number. 𝑥. = is. 70% of. ∙ − 𝑥. =
100. 𝑥. 𝑥 = = 40. 𝑥 5. 5𝑥. = 𝑥 𝑥. = = 𝑥. 𝑥. = What percent. 0.01𝑥. of. ∙ = is 𝑥= ∙2∙2∙2∙2 2∙2∙2∙5. = =
= 𝑥. = 𝑥. 9 𝑥. 9𝑥. = 𝑥. 36𝑥. = 𝑥. = 𝑥. = ∙2∙3∙3 2∙2∙5∙ = 16. = 16. is. 36% of. = ∙ what number. 𝑥. = 2∙2∙2∙2∙2∙2∙5∙5. 𝑥= 2∙2∙3∙3. 𝑥= =
= 𝑥 48. Example B: What percent of 40 is 32 𝑥 100 = Example C: 16 is 36% of what number = 16 𝑥.
Example E: Mr. Yost takes his wife to a restaurant and the bill is €48. If he leaves €6 for tip, what percentage is he tipping Example F: Mr. Petrtiz takes his wife to a restaurant. He is very generous, and always tips 20%. The tip is €8.50. How much was the bill
What is 15% of 36 𝑥 𝑥 tip. tip. = = 36. total. total = 100 𝑥. 100𝑥 = 20 𝑥. 20𝑥 = 𝑥 = 𝑥 − ∙5 2∙2∙5∙5. = = 4 0. −
What is 15% of 36 What. 𝑥. = is. 15% of. ∙ 𝑥. =
Example E: Mr. Yost takes his wife to a restaurant and the bill is €48. If he leaves €6 for tip, what percentage is he tipping What percent of 48 is 𝑥. tip. 6. tip 𝑥 = = 48. total. total. 𝑥 8. 8𝑥. = 𝑥 𝑥. = = 𝑥. 𝑥 = 2∙2∙2∙3∙5∙5. 𝑥= 2∙2∙2∙2∙ 𝑥= ∙3 2∙2∙2∙2∙3. = = =
Example E: Mr. Yost takes his wife to a restaurant and the bill is €48. If he leaves €6 for tip, what percentage is he tipping What percent of 48 is 6 What percent. 0.01𝑥. of. ∙ = is 𝑥 = 𝑥 =
Example F: Mr. Petritz takes his wife to a restaurant. He is very generous, and always tips 20%. The tip is €8.50. How much was the bill 8.50 is 20 percent of what number tip. tip. = = 𝑥. 𝑥. total. total. 1 𝑥. 𝑥. = 𝑥. 20𝑥. = = 𝑥. = 𝑥= ∙2∙5 2∙2∙5∙ = =
Example F: Mr. Adams takes his wife to a restaurant. He is very generous, and always tips 20%. The tip is €8.50. How much was the bill 8.50 is 20 percent of what number % 0.2. = is. of. ∙ what number. 𝑥. 8.5=0.2𝑥 𝑥=