Review Worksheet 2.6 to 2.10 Name (price of item)(%discount)=(amount saved) Section 2.9 & 2.10 (price of item)(%markup)=(amount of increase) Evaluate. Increase Decrease 1. 3% of 600 is what number? NP-OP = % OP-NP = % 2. 60 is 12% of what number? OP 100 OP 100 3. What percent of 120 is 18? 4. Paul was given a 32% discount on a new stereo. If this saved him $86, what was the original price? 5. A $65 pair of running shoes is marked down 15%. How much will you save and what is the sale price? 6. Angel’s parents buy her a car for $3500. If she has to pay a 9.25% sales tax, how much tax will Angel pay? What is the final price of the car? 7. Mrs. Underwood had 142 students in 2012. In 2013-14 she had 180. What was the percent increase? 8. What is the percent decrease if a shop lowers the price of an item from $95 to $80? 9. What is the simple interest on $500 invested for 3 years at 8%? (I=prt) 10. If the simple interest on an investment is $250. How much did John invest if the interest rate was 5% for 6 years? (I=prt) Section 2.6 Convert the given amount to the given unit. 11. 15 days; hours 12. 60 ft; yd 14. 5 liters; qt 15. 12 meters; ft 17. 14 gal/s; qt/min 18. 15 dollars/hr; cents/min 13. 16. 80 meters; cm 62 inches; m Solve. 19. Car 1 drove 408 miles in 6 hours and Car 2 drove 365 miles in 5 hours during the cross-country road race. Who had the fastest average speed? 20. Mrs. Jacobson purchased a 5-pound package of ground beef for $12.40. She decided to use 8 ounces each day for dinner recipes. What was the cost of the ground beef per meal? Section 2.7 & 2.8 Solve. 21. 25. 26. 27. 28. 29. 30. 31. 𝑥−1 2 = 𝑥−2 3 22. 2𝑛−1 𝑛+2 = 5 4 23. 15 9 = 8 𝑥 24. 11 5 = 𝑥 −6 The windows on a building are proportional to the size of the building. The height of each window is 18 in. and the width is 11 in. If the height of the building is 108 feet, what is the width of the building? Eric is planning to bake approximately 305 cookies. If 3 pounds of cookie dough make 96 cookies, how many pounds of cookie dough should he make? On a map, the distance between Sheila’s house and Shardae’s house is 6.75 inches. According to the scale, 1.5 inches represents 5 miles. How far apart are the houses? Sixty-two students, out of 100 surveyed, chose pizza as their favorite lunch item. If the school has 1250 students, how many students would likely say that pizza is their favorite if the survey is a fair representation of the student body? A museum has a wax sculpture of a historical village. The scale is 1.5:8. If the height of a hut in the sculpture is 5 feet, how tall was the original hut to the nearest tenth? On a map, the length of a river is 4.75 inches. The actual length of the river is 247 miles. What is the scale of the map? (hint the ratio of the map is 1 in to what number miles) Sammy is constructing a model bridge out of sticks. The actual bridge is 1320 feet long. He wants the scale of his bridge to be 1:400. How long should the model be? Answer key to Review Wkst 2.6 to 2.10 1 18 9 $120 2 500 10 $833.33 3 15% 11 360 hours 4 $268.75 12 20 yd 5 6 7 8 Sales Price $55.25 Amount Saved: $9.75 Final $: $3823.75 Tax amount $323.75 26.8% 15.8% 17 18 19 20 3360 qt/min 25 cents/min Car 2 $1.24/meal 25 26 27 28 13 8000 cm 21 x= ̶ 1 29 14 5.3 qt 22 n = 4.7 30 15 39.3 ft 16 1.6m 23 x = 4.8 24 x = ̶ 13.2 66 ft 9.5 lbs 22.5 mi 775 students prefer pizza 26.7 ft 52 mi; 1 inch = 52 miles on map Answer key to Review Wkst 2.6 to 2.10 1 18 9 $120 2 500 10 $833.33 3 15% 11 360 hours 4 $268.75 12 20 yd 5 6 7 8 Sales Price $55.25 Amount Saved: $9.75 Final $: $3823.75 Tax amount $323.75 26.8% 15.8% 6 7 8 Sales Price $55.25 Amount Saved: $9.75 Final $: $3823.75 Tax amount $323.75 26.8% 15.8% 6 7 8 Sales Price $55.25 Amount Saved: $9.75 Final $: $3823.75 Tax amount $323.75 26.8% 15.8% 25 26 27 28 66 ft 9.5 lbs 22.5 mi 775 students prefer pizza 26.7 ft 21 x= ̶ 1 29 14 5.3 qt 22 n = 4.7 30 52 mi; 1 inch = 52 miles on map 15 39.3 ft 16 1.6m 23 x = 4.8 24 x = ̶ 13.2 25 26 27 28 66 ft 9.5 lbs 22.5 mi 775 students prefer pizza 26.7 ft 17 18 19 20 3360 qt/min 25 cents/min Car 2 $1.24/meal 13 8000 cm 21 x= ̶ 1 29 14 5.3 qt 22 n = 4.7 30 52 mi; 1 inch = 52 miles on map 15 39.3 ft 16 1.6m 23 x = 4.8 24 x = ̶ 13.2 25 26 27 28 66 ft 9.5 lbs 22.5 mi 775 students prefer pizza 26.7 ft Answer key to Review Wkst 2.6 to 2.10 1 18 9 $120 2 500 10 $833.33 3 15% 11 360 hours 4 $268.75 12 20 yd 5 3360 qt/min 25 cents/min Car 2 $1.24/meal 13 8000 cm Answer key to Review Wkst 2.6 to 2.10 1 18 9 $120 2 500 10 $833.33 3 15% 11 360 hours 4 $268.75 12 20 yd 5 17 18 19 20 17 18 19 20 3360 qt/min 25 cents/min Car 2 $1.24/meal 13 8000 cm 21 x= ̶ 1 29 14 5.3 qt 22 n = 4.7 30 15 39.3 ft 16 1.6m 23 x = 4.8 24 x = ̶ 13.2 52 mi; 1 inch = 52 miles on map