Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys
Chapter 5: Proportions and Percent; Lesson 2: Rewriting Percent Expressions


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  • Question 16 (request help)

    Represent Real-World Problems

    Harold works at a men’s clothing store, which marks up its retail clothing by 27%. The store purchases pants for $74.00, suit jackets for $325.00, and dress shirts for $48.00. How much will Harold charge a customer for two pairs of pants, three dress shirts, and a suit jacket?

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  • Question 17 (request help)

    Analyze Relationships

    Your family needs a set of 4 tires. Which of the following deals would you prefer? Explain.

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  H.O.T.  

  Focus on Higher Order Thinking  

  • Question 18 (request help)

    Critique Reasoning

    Margo purchases bulk teas from a warehouse and marks up those prices by 20% for retail sale. When teas go unsold for more than two months, Margo marks down the retail price by 20%. She says that she is breaking even, that is, she is getting the same price for the tea that she paid for it. Is she correct? Explain.

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  • Question 19 (request help)

    Problem Solving

    Grady marks down some $2.49 pens to $1.99 for a week and then marks them back up to $2.49. Find the percent of increase and the percent of decrease to the nearest tenth. Are the percents of change the same for both price changes? If not, which is a greater change?

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  • Question 20 (request help)

    Persevere in Problem Solving

    At Danielle’s clothing boutique, if an item does not sell for eight weeks, she marks it down by 15%. If it remains unsold after that, she marks it down an additional 5% each week until she can no longer make a profit. Then she donates it to charity.

    Rafael wants to buy a coat originally priced $150, but he can’t afford more than $110. If Danielle paid $100 for the coat, during which week(s) could Rafael buy the coat within his budget? Justify your answer.

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