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Unit 6 Review

Unit 6 Review. Express as a percent. 0.06. 6%. Express as a percent. 5.49. 549%. Express as a decimal…. 2.25%. 0.0225. Express as a percent. 23 25. 23 = x 25 100 92%. Solve using the percent equation …. 35 is what percent of 50?. 35 = (n) 50 50 50 n = .7

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Unit 6 Review

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  1. Unit 6 Review

  2. Express as a percent... 0.06

  3. 6%

  4. Express as a percent... 5.49

  5. 549%

  6. Express as a decimal… 2.25%

  7. 0.0225

  8. Express as a percent... 23 25

  9. 23 = x 25 100 92%

  10. Solve using the percent equation… 35 is what percent of 50?

  11. 35 = (n) 50 50 50 n = .7 Final answer…70%

  12. Brittney spent $300 dollars on eight new sweaters. How much did she spend per sweater?

  13. $37.50

  14. I = prt If you wanted to earn $200 in interest over 5 years with an interest rate of 4%, how much money would you have to invest?

  15. I = prt 200 = p (.04) (5) 200 = p (.2) .2 .2 p = $1,000

  16. Tracy used to jog 16 miles per week. Now she only has time to jog 6 miles per week. What is the percent of change?

  17. -62.5%

  18. If the length of the side of a square is increased from 4 to 8, which of the following statements is true? • A. Both the area and perimeter are doubled • B. Both the area and perimeter are quadrupled • C. The perimeter is doubled and the area is quadrupled. • D. The perimeter is quadrupled and the area is doubled.

  19. C

  20. Rectangle II Area = 30 units2 Rectangle I 2.5 units 7.5 units The two rectangles below are similar… What is the area of Rectangle II?

  21. 270 units2

  22. The scale on a map is ¼ inch = 100 miles. The distance on a map from Dallas, TX to New York City is 5 inches. How far is the actual distance?

  23. Map.25 = 5 Actual 100 X 2,000 miles

  24. Find the scale factor for 6 inches = 5 feet. Scale factor must be in the same units!

  25. 6 inches 60 inches 1 : 10

  26. A model of an airplane is 10 inches in length. The actual length of the airplane is 150 feet. What is the scale used to build the model? 1 inch = ? feet

  27. Scale: 1 inch = 15 feet

  28. Jared can eat 11 gummy bears in 6 minutes. How many can he eat in 3 hours?

  29. Word ratio: gummy bears minutes 11 = x 6 180 330 gummy bears

  30. Sharon earns a salary of $425 per week plus an additional 5% commission on her sales. How much will she earn this week if her sales are $3,500?

  31. $3,500 x .05 = $175 $425 + $175 = $600

  32. Timmy made a scale drawing of a room. The drawing has a length of 4 inches and a width of 3 inches. The actual room has a width of 72 feet. What is the length, in feet, of the actual room?

  33. 96 feet

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