HW #17- Enriched

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Write each decimal as a percent or each percent as a decimal.

1. 0.2 2. 0.95 3. 1.1 4. 3

5. 25% 6. 4% 7. 31% 8. 6.75%

9. 0.08 10. 1.81 11. 0.375 12. 0.78

13. 0.42 14. 2.3 15. 1.25 16. 0.03

Percent of a Number

Find each number. Round to the nearest hundredth if necessary.

1. 55% of 140 2. 40% of 123 3. 37% of $150

4. 25% of 96 5. 11% of $333 6. 99% of 14

7. 4.1% of 30 8. 8.9% of 75 9. 24.2% of $120

10. SALES Mr. Redding sells vehicles to 20% of the people that come to the sales lot. If 65

people came to the lot last month, how many vehicles did he sell?

Find each number. Round to the nearest hundredth if necessary.

11. of 600 12. of 3

13. 1,000% of 87 14. 100% of 56

15. 0.25% of 150 16. 0.7% of 50

17. ANALYZE TABLES Use the table that shows the percents

of blood types of 145 donors during a recent blood drive.

a.  Find how many donors had type B blood. Round to the

nearest whole number if necessary.

b. How many donors did not have type O blood? Round to the nearest whole number if necessary.

c. Which blood type had less than 10 donors?

______

The Percent Proportion

Find each number. Round to the nearest tenth if necessary.

1. What percent of 65 is 13? 2. $4 is what percent of $50?

3. What number is 35% of 22? 4. 14% of 81 is what number?

5. 13 is 26% of what number? 6. 55 is 40% of what number?

7. What number is 0.4% of 20? 8. What number is 6.1% of 60?

9. What percent of 34 is 34? 10. 10.4% of what number is 13?

11. ALLOWANCE Mallorie has $3 in her wallet. If this is 10% of her monthly allowance, what is her monthly allowance?

12. WEDDING Of the 125 guests invited to a wedding, 104 attended the wedding. What percent of the invited guests attended the wedding?

13. CAMERA The memory card on Melcher’s digital camera can hold about 430 pictures. Melcher used 18% of the memory card while taking pictures at a family reunion. About how many pictures did Melcher take at the family reunion? Round to the nearest whole number.

14. OCEANS Use the table shown.

a. The area of the Indian Ocean is what percent of the area of the Pacific Ocean? Round to the nearest whole percent.

b. If the area of the Arctic Ocean is 16% of the area of the Atlantic Ocean, what is the area of the Arctic Ocean? Round to the nearest whole million.

The Percent Equation

Write an equation for each problem. Then solve. Round to the nearest tenth if necessary.

1. What number is 27% of 52? 2. Find 41% of 48.

3. What percent of 88 is 33? 4. 8 is what percent of 18?

5. 19 is 50% of what number? 6. 25 is 32% of what number?

7. 40% of what number is 28? 8. 30 is what percent of 60?

9. BASEBALL A baseball player was at bat 473 times during the regular season. If he made a hit 31.5% of the times he was at bat, how many hits did he make during the regular season? Round to the nearest whole number if necessary.

10. ANALYZE GRAPHS Use the graph shown. The total enrollment at Central High School is 798 students.

a. About what percent of the students at

Central High are freshmen? Round to the

nearest tenth if necessary.

b. About what percent of the students at

Central High are seniors? Round to the

nearest tenth if necessary