Grade 7 McGraw Hill Glencoe - Answer Keys Answer keys Chapter 6: Equations and Inequalities; Lesson 5: More Two-Step Equations

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Grade 7 McGraw Hill Glencoe - Answer Keys

Chapter 6: Equations and Inequalities; Lesson 5: More Two-Step Equations

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Question 9 (request help)
Mrs. Sorenstam bought one ruler, one compass, and one mechanical pencil at the prices shown in the table for each of her 12 students.
a. Suppose Mrs. Sorenstam had 36 cents left after buying the school supplies. Write an equation to find the amount of money Mrs. Sorenstam initially had to spend on each student.
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Question 9 (request help)
b. Describe a two-step process you could use to solve your equation.Then solve the equation.

Question 10 (request help)
Model with Mathematics Write a real-world situation that can be represented by the equation 2(n + 20) = 110.

Question 11 (request help)
Find the Error Marisol is solving the equation 6(x + 3) = 21. Find her mistake and correct it.
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Question 12 (request help)
Persevere with Problems Solve p(x + q) = r for x.
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Question 13 (request help)
Each week, Payat spends a portion of his allowance to download music. The table shows the cumulative amount that he spent on music downloads during a three-week period.At the end of Week 3, Payat had $9 left. Which equation can be used to find the amount of Payat’s weekly allowance a?
- 3(a - 12) = 9
- 9(a + 12) = 3
- 3(a + 12) = 9
- 9(a - 12) = 3