Using Percents Study Guide SOL 7.4
Name ______Date ______Block _____
Part 1: Complete the table below. NO CALCULATOR!
10% / 15% / 20% / 25% / 40%460
150
60,000
28
Part 2: Answer each question. Show all your work. NO CALCULATOR!
1. A pair of earrings costs $50. Kohl’s is having a 15% off sale. How much will the customer save? What will be the final cost of the earrings?
2. Tina wants to buy a new phone that costs $200. The tax on it is an outrageous 25%! What is the total price of the phone after tax?
3. Tony bought two pairs of running shorts for $10 each. If the shorts were on sale for 10% off, what will be the total before tax?
4. Jared is saving up for a trip to Ireland. He will need $3,000 to make the trip. If he earns $300 a week and is able to put 20% of his weekly income into his savings account, how many weeks will it take him to have the money for his trip? Will he need to save for more or less than a year?
Part 3: Solve each problem. You may use a calculator. Show ALL your work.
5. Tim took a science test. He had 92.5% of the questions correct. If there were 200 questions on the test, how many of them did he get correct?
6. Six out of 30 students in Mr. Ogden’s math class received an A on the last summative. What percentage of students received an A?
7. 75% of the questions on Jane’s math test were correct. If she got 60 questions correct, how many questions were there all together?
8. In Susie’s class, there are 32 students. If 25% of the students in her class are males, how many females are in Susie’s class?
9. Steven bought a bag of popcorn that was 30% cheesy popcorn. The rest was caramel corn. If there were 540 pieces of popcorn in the bag, how many pieces of caramel corn were there?
10. The Kalamazoo Donut Mill is advertising that their new recipe for glazed donuts has 26% less fat. If a donut made with their original recipe had 19 total grams of fat in it, how many grams of fat are in a donut made with their new recipe?
11. Your parents took your family out for pizza and breadsticks. If the total bill was $42.00, how much money would your parents need to leave if they wanted to give the waiter an 18% tip? How much would the total bill be without tax?
12. The regular price of an aquarium is $70. It is on sale for 14% off. What is the discount? What is the sale price?
13. Steve bought a remote control car for $95 and a remote control airplane for $125. They are both on sale for 30% off with a sales tax of 6.5%. What is the final price of the remote control car and airplane together?
14. The total bill for our dinner is $46.79 before tax. The sales tax is 512%. Find the total cost of the dinner with tax if you also want to give a 15% tip.
15. Rick bought 3 shirts for $18 each and 2 pair of socks for $3.99 a pair. He has a coupon for 15% off of his entire purchase. The sales tax rate is 8.5%. . How much did he pay at the register?