Math Practice 101
Homework Explained - Math Practice 101

Dear guest, you are not a registered member. As a guest, you only have read-only access to our books, tests and other practice materials.

As a registered member you can:

Registration is free and doesn't require any type of payment information. Click here to Register.
Go to page:  

Grade 7 HMH Go Math - Answer Keys
Chapter 5: Proportions and Percent; Lesson 3: Applications of Percent


Please share this page with your friends on FaceBook
  • Question 23 (request help)

    Multistep

    Eric downloads the coupon shown and goes shopping at Gadgets Galore, where he buys a digital camera for $95 and an extra battery for $15.99.

    a. What is the total cost if the coupon is applied to the digital camera?
  • $    
  • Question 23 (request help)

    b. What is the total cost if the coupon is applied to the extra battery?
  • $    
  • Question 23 (request help)

    c. To which item should Eric apply the discount? Explain.
  •    
  • Question 23 (request help)

    d. Eric has to pay 8% sales tax after the coupon is applied. How much is his total bill?
  • $    
  • Question 24 (request help)

    Two stores are having sales on the same shirts. The sale at Store 1 is “2 shirts for $22” and the sale at Store 2 is “Each $12.99 shirt is 10% off”.

    a. Explain how much will you save by buying at Store 1.
  • $    
  • Question 24 (request help)

    b. If Store 3 has shirts originally priced at $20.98 on sale for 55% off, does it have a better deal than the other stores? Justify your answer.
  •    

  H.O.T.  

  Focus on Higher Order Thinking  

  • Question 25 (request help)

    Analyze Relationships

    Marcus can choose between a monthly salary of $1,500 plus 5.5% of sales or $2,400 plus 3% of sales. He expects sales between $5,000 and $10,000 a month. Which salary option should he choose? Explain.
  •    
  • Question 26 (request help)

    Multistep

    In chemistry class, Bob recorded the volume of a liquid as 13.2 mL. The actual volume was 13.7 mL. Use the formula to find percent error of Bob’s measurement to the nearest tenth of a percent.
  •     %

Yes, email page to my online tutor. (if you didn't add a tutor yet, you can add one here)