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Chapter 7 Review Solve Systems of Equations Apply Systems of Equations

Chapter 7 Review Solve Systems of Equations Apply Systems of Equations. 1. (-1,0) 2. (1,4) 3. 15 of Style A; 13 of Style B 4. Depends on students’ answers 5. Infinitely Many Solutions 6. June; 14 people; Joe 7. (3, -5) 8. (2,-1) 9. 10. Tacos cost $1.49 each. Burritos cost $1.79 each.

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Chapter 7 Review Solve Systems of Equations Apply Systems of Equations

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  1. Chapter 7 ReviewSolve Systems of EquationsApply Systems of Equations 1. (-1,0) 2. (1,4) 3. 15 of Style A; 13 of Style B 4. Depends on students’ answers 5. Infinitely Many Solutions 6. June; 14 people; Joe 7. (3, -5) 8. (2,-1) 9. 10. Tacos cost $1.49 each. Burritos cost $1.79 each.

  2. #1 Solve the system of equations. Graphs are provided if needed.

  3. #2 Solve the system of equations. Graphs are provided if needed.

  4. #3 Write and solve a system of equations. Define your variables. A store sold 28 pairs of cross-trainer shoes for a total of $2220. Style A sold for $70 per pair and Style B sold for $90 per pair. How many of each style were sold?

  5. #4 For each system, tell which method would be best to solve the system (Graphing, Substitution, or Elimination). Explainyour reasoning. You do not need to solve the system. a) b) c)

  6. #5 Solve the system of equations. Graphs are provided if needed.

  7. #6 Susie and Joe both are on Facebook. In March, Susie has 5 friends, and is adding 3 friends per month. Joe has 2 friends and is adding 4 friends per month. Assume they will continue adding friends at the same rate. Note the intervals on the graph! • In what month will Joe and Susie have the same number of friend? • In that month, how many friends will they each have? • Who will have more friends in September?

  8. #7 Solve the system of equations. Graphs are provided if needed.

  9. #8 Solve the system of equations. Graphs are provided if needed.

  10. #9 Write a system of equations. Define your variables. You do NOT need to solve the system. • You have 28 coins that are all nickels and dimes. The value of the coins is $2.05. Write a systems of equations that can be used to find the number of nickels (n) and dimes (d). • Two groups of students order burritos and tacos at a local restaurant. One order of 3 burritos and 4 tacos costs $11.33. The other order of 9 burritos and 5 tacos costs $23.56. Write a system of equations to represent the situation.

  11. #10 Write and solve a system of equations. Define your variables. Two groups of students order burritos and tacos at a local restaurant. One order of 3 burritos and 4 tacos costs $11.33. The other order of 9 burritos and 5 tacos costs $23.56. Write a system of equations to represent the situation.

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