Ratio, Proportion and Percents

# Ratio, Proportion and Percents

## Ratio, Proportion and Percents

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##### Presentation Transcript

1. MATH Ratio, Proportion and Percents

2. Rates

3. Conversions

4. Proportions

5. Similar Figures and Scale

6. Probability and Odds

7. Ratio

8. Similar Figures and Scale Probability and Odds Conversions Rates Proportions Ratio \$100 \$100 \$100 \$100 \$100 \$100 \$200 \$200 \$200 \$200 \$200 \$200 \$300 \$300 \$300 \$300 \$300 \$300 \$400 \$400 \$400 \$400 \$400 \$400 \$500 \$500 \$500 \$500 \$500 \$500

9. How do you change a rate into a unit rate?

10. What is you make the denominator equal 1 by dividing the numerator and denominator by the denominator?

11. I traveled 291 miles with 6 gallons of gas (in my Prius). Change that to a unit rate (round to the nearest tenth if necessary).

12. What is 48.5miles/gallon?

13. I paid \$5.99 for 64oz of ice-cream. Find the cost (to the nearest penny) per ounce.

14. What is \$0.09/oz?

15. Change each to a unit rate to determine which is the better deal: A: \$2.05 for 16lb B \$3.92 for 28lb

16. What is choice A (\$0.13/lb)?

17. Jerry threw 84 strikeouts in 10 games. Tom had 60 in 8 games. Who has the better strikeouts per game average and by how much?

18. Who is Jerry by 0.9 strikeouts per game?

19. Change 0.254 to a percent.

20. What is 25.4%?

21. Convert 5/25 to a decimal and percent

22. What is 0.2 and 20%?

23. Convert 0.6% to a decimal and fraction (in lowest terms)

24. What is 0.006 and 3/500?

25. Convert to a decimal and percent

26. What is 5.375 and 537.5%?

27. Convert 1.852 to a fraction and percent

28. What is and 185.2%?

29. Do the ratios below form proportion? How can you tell?

30. What is no, because 8x4 does not equal 12x2?

31. Do the ratios below form proportion? Prove it.

32. What is yes 3.8x12.4 = 3.1x15.2 (47.12)?

33. Find n. Round to the nearest tenth.

34. What is h = 10.1?

35. Find p. Round to the nearest tenth.

36. What is p = 7.2?

37. What is 204 bags?

38. What are the characteristics of similar figures and what does the sign for similar figures look like?

39. Similar figures (1) have the same shape (equal angles) and (2) their sides are in proportion. The sign indicating similarity looks like ~.

40. Two cities are 350 miles apart. A map uses a scale of 2.5cm:20miles. How far apart are the cities on the map?

41. What is 43.75cm?

42. A model of a T-Rex uses a scale of 4.5in:7ft. The arms of the model are 1.9in long. How long were the T-Rex’s arms in real life (round to the nearest foot)?

43. What is 3ft?

44. Find y in these similar figures. y 24in 90in 5in

45. What is y = 18.75in?

46. Find g and h in these similar figures. 10.5m 3m h 14m g 7m

47. What is h = 4m and g = 2m?