Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 2: Percents; Lesson 5: Percent of Change


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Extra Practice

Find each percent of change. Round to the nearest whole percent. State whether the percent of the change is an increase or decrease.

  • Question 18 (request help)

    48 notebooks to 14 notebooks
  •    \(\large \text{ %}\)
       
  • Question 20 (request help)

    624 feet to 702 feet
  •    \(\large \text{ %}\)
       
  • Question 21 (request help)

    The table shows the number of youth 7 years and older who played soccer from 2004 to 2012.

    a. Find the percent of change from 2008 to 2012. Round to the nearest tenth of a percent. Is it an increase or decrease?
  •    \(\large \text{ %}\)
       
  • Question 21 (request help)

    b. Find the percent of change from 2006 to 2008. Round to the nearest tenth of a percent. Is it an increase or decrease?
  •    \(\large \text{ %}\)
       
  • Question 22 (request help)

    Shoe sales for a certain company were $25.9 billion. Sales are expected to increase by about 20% in the next year. Find the projected amount of shoe sales next year.
  •    \(\large \text{ billion}\)
  • Question 23 (request help)

    Be Precise Eva estimates that 475 songs will fit on her MP3 player. The actual amount of songs that fit is 380. Find the percent error.
  •    \(\large \text{ %}\)
  • Question 24 (request help)

    The table shows Catalina’s babysitting hours. She charges $6.50 per hour. Write a sentence that compares the percent of change in the amount of money earned from April to May to the percent of change in the amount of money earned from May to June. Round to the nearest percent if needed.
  • Type below:

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