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NAME ________________________________________________ DATE ________________ Test 3 Review Math 0302 Solve. 8 1 1. y 9 3 4. 2z 5 12 7. Find the square root: 2. 1 3 a 2 8 3. 4 x 8 7 5. x x 6 3 6. x 5 3 12 6 4 4 . 49 8. Find the unknown length in the right triangle. Round the length to the nearest thousandth. 9. Write the ratio as a fraction in simplest form: 16 inches to 24 inches. Write the sentence as a proportion, and then determine whether the proportion is a true proportion. 10. six is to eight as nine is to twelve 11. 6 eagles is to 58 sparrows as 3 eagles is to 29 sparrows Solve. 5 x 12. 4 20 13. 15 10 x 4 14. One gallon of stain covers 200 square feet of fence or decking. If a fence panel is a rectangle measuring six feet by eight feet, and a yard is surrounded by 25 fence panels, how much stain should be purchased? 15. Write the percent as a decimal: 124.5% 16. Write the decimal as a percent: 0.72 17. Write the percent as a fraction or mixed number: 0.2% 18. Write the fraction or mixed number as a percent: 6 5 Translate to an equation and solve. 19. 67 is what percent of 50? 20. 60% of what number is 402? Translate to a proportion and solve. 21. 104.5 is 25% of what number? 22. What number is 15% of 360? Solve. 23. If a penny weighs 2.5 grams, and the amount of copper in a penny is 0.0625 grams, what percent of a penny is made of copper? 24. In 2003, 5.5 million digital television sets were sold in the United States. By 2007, this number had increased by 393%. How many digital television sets were sold in the United States in 2007? 25. A dining set sells for $1099. If the sales tax rate is 8.25%, find the total cost of the set. 26. Susan is a beauty consultant for a home cosmetic business. She is paid a commission rate of 12%. Find her commission if she sold $1638 in cosmetics last month. 27. Find the simple interest when the principal is $800, the rate is 9% and the time is 3 years. 28. A couple borrows $215,000 to buy a house. If the simple interest rate on the 30-year loan is 8.25%, find the interest paid on the loan and the total amount paid back. Math 0302 Test 3 Review Answers 1. 11 9 5. 9 9. 2. 7 8 6. -19 2 3 10. 13. x = -6 6 9 ; true 8 12 3. -14 7. 2 7 11. 4. 5 24 8. 14.457 in. 6 3 ; false 12. x = 25 58 29 14. 6 gallons 15. 1.245 16. 72% 18. 120% 19. 134% 20. 670 21. 418 22. 54 23. 2.5% 24. 21.615 million 25. $1189.67 26. $196.56 27. $216 17. 1 500 28. $532,125; $747,125