Puzzle 5-1. Percents, Fractions, and Decimals

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1 5-1 Percents, Fractions, and Decimals Some of the percents, decimals, and fractions in the diagram are equivalent. Decimals are rounded to the nearest hundredth. To find the hidden pattern in the diagram, use a ruler to draw straight lines between equivalent values. 5% % % %. % % % Course 2 Lesson 5-1

2 5-2 Solving Percent Problems Using Proportions The middle school basketball coach was preparing awards for the upcoming sports banquet. During the season, he kept track of the number of freethrows each of his players attempted. He also recorded how many of the attempts were successful baskets. Help the coach determine which player should win the award for Highest Percent Freethrow Scorer by using the attempts and baskets to calculate the percent. Round each answer to the nearest tenth of a percent. H. Player 3: 64 attempts 51 baskets G. Player 22: 48 attempts baskets T. Player 7: 36 attempts 28 baskets E. Player 8: 75 attempts 72 baskets I. Player 55: 82 attempts 77 baskets Order your answers from greatest to least. Using the same order, write the exercise letter in the spaces below to complete the sentence. Player number should win the award. Course 2 Lesson 5-2

3 5-3 Solving Percent Problems Using Equations Read the clues below. Write an equation to solve for the unknown number, then solve each equation. CLUE EQUATION 1. What number is 35% of? 2. 1,554 is 25% of what number? 3. What number is % of 4,985? 4. 35,12 is % of what number? 5. What number is 2% of 4,75? is 63% of what number? Check your answers by entering them in the puzzle Course 2 Lesson 5-3

4 5-4 Applications of Percent Answer each of the clues to solve the crossword puzzle below. Round each answer to the nearest hundredth. Remember that each decimal point is entered in its own box. The solution to 1 across is done for you. Across 1. A bike is on sale for $265.. What is the total cost of the bike including a 5% sales tax? Find the commission on a $4,5. sale with a.5% commission rate. 5. Nancy has her hair cut at a salon for $35.. She always leaves a 15% tip for the stylist. How much is the tip? 7. Find the 7.2% sales tax on a $9.78 book Down 1. Find the total cost: $19.99 with a 4% sales tax. 2. You have lunch at a restaurant. Your bill is $6. and you decide to leave a % tip. How much should you pay in total? 4. Including a 6% sales tax, what is the cost of a motorcycle priced at $2,2.? 6. Mario earns a weekly salary of $4. plus a 12% commission on any sales. This week he sold $525. worth of merchandise. How much did Mario earn? Course 2 Lesson 5-4

5 5-5 Simple Interest The solution to each of the exercises is hidden in the number-search at the bottom of the page. Solve each simple interest exercise, and circle its answer in the number-search. Round each answer to the nearest cent. 1. What is the simple interest earned on $ at a % interest rate over three years? 2. In one month, you earned $ delivering newspapers. If you deposit the money in a savings account with a simple interest rate of 12%, how much interest will you earn in six years? 3. What is the simple interest accumulated on a $ loan with 12% interest after 6 years? 4. A simple interest rate of 15% is offered on a savings account. You deposit $3 in the account. What is the total account balance after two years? 5. Find the simple interest on a $1 loan with 6% interest over three years. 6. You earn $1, during your summer vacation. You decide to invest your money in a savings account with a 3.1% interest rate. Determine your savings account balance after four years. 7. Find the interest earned in two years by investing $3,5 in an account that pays 6.5% simple interest. 8. Robert borrowed $5 from the bank to purchase a new computer. With money earned from his after-school job, he will repay the bank after four years. If the bank charges 3.5% simple interest, what is the total amount Robert must repay? Course 2 Lesson 5-5

6 5-6 Finding Percent of Change The high temperature on Sunday was 718 F. Look at the thermometers below. Use the Percent of Change table to match each thermometer to a day of the week Percent of Change Sunday Monday % increase Monday Tuesday 15% decrease Tuesday Wednesday 6% decrease Wednesday Thursday 18% increase Thursday Friday 3% decrease Friday Saturday 17% decrease Sunday Monday Tuesday Wednesday Thursday Friday Saturday Course 2 Lesson 5-6

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