Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 2: Percents; Lesson 7: Discount


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Extra Practice

Find the sale price to the nearest cent.

  • Question 17 (request help)

    $199 MP3 player; 15% discount

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  • Question 18 (request help)

    $12.25 pen set; 60% discount

  • \(\large$ \)   
  • Question 19 (request help)

    Mrs. Robinson bought a novel at a bookstore on sale for 20% off its regular price of $29.99. Mr. Chang bought the same novel at a different bookstore for 10% off its regular price of $25. Which person received the better discount? Explain.

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  • Question 20 (request help)

    Multiple Representations An online store is having a sale on digital cameras. The table shows the regular price and the sale price for the cameras. 

    a. Words Write a rule that can be used to find the percent of decrease for any of the cameras.

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  • Question 20 (request help)

    b. Table Complete the table for the discount.

  • Camera Model Regular Price Sale Price Discount [%]
    A $97.99 $83.30
    B $102.50 $82.00
    C $75.99 $65.35
    D $150.50 $135.455
  • Question 20 (request help)

    c. Numbers Which model has the greatest percent discount?

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