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Solving Percent Problems

Dive into Lesson 3.8 of our math series, focusing on solving percent problems effectively. This guide covers how to calculate savings when an item is on sale, using an example of a paperback novel originally priced at $7.99 with a 15% discount. Learn how to convert percentages to decimals and apply these skills in real-world contexts like earnings from sales and discounts on clothing. Practice exercises are included to reinforce your understanding, ensuring you develop essential math skills.

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Solving Percent Problems

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  1. Solving Percent Problems Lesson 3.8

  2. A paperback novel originally cost $7.99. It is on sale for 15% off. • Calculate how much you save. • 15% = 15/100 • So 15% of $7.99 = 0.15 x 7.99 OF = Multiply Therefore, 15% of $7.99 means to multiply.

  3. You need to convert the percent to a fraction and then the fraction to a decimal to make a percent calculation. • Remember, percent is always out of 100. So the denominator will always be 100.

  4. Convert these percents to decimals. • 18% • 27% • 95% • 5%

  5. Aly works at the flower shop on Saturday’s. He gets paid 3% of all the money he sells in a day. Last Saturday, Aly sold $1200. How much money did he earn?

  6. Calculate the following • 14% of 20 • 29% of 40 • 62% of 90 • 5% of 50

  7. The regular price of a pair of jeans is $90. Calculate the amount saved if the discount was: • 20% • 50% • 75%

  8. Homework • Workbook 3.8 • Textbook Page 115-116 #2, 3, 4, 7, 8

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