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Section 11.4: Solving Linear Systems by Multiplying First

Section 11.4: Solving Linear Systems by Multiplying First. Objective(s): By following instructions, students will be able to: solve a system of linear equations by using multiplication and elimination. explain 1A.

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Section 11.4: Solving Linear Systems by Multiplying First

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  1. Section 11.4: Solving Linear Systems by Multiplying First

  2. Objective(s): By following instructions, students will be able to: • solve a system of linear equations by using multiplication and elimination.

  3. explain 1A Solve the system of linear equations by elimination. Check the answers by graphing the systems of equations.

  4. explain 1B Solve the system of linear equations by elimination. Check the answers by graphing the systems of equations.

  5. Your-Turn #1 Solve the system of linear equations by elimination. Check your answers by graphing the systems of equations. • b)

  6. explain 2A

  7. explain 2B The Tran family is bringing 15 packages of cheese to a group picnic. Cheese slices cost $2.50 per package. Cheese cubes cost $1.75 per package. The Tran family spent a total of $30 on cheese. The system of equations ⎧ s + c = 15 ⎨ ⎩ 2.50s + 1.75c = 30 represents this situation, where s is the number of packages of cheese slices and c is the number of packages of cheese cubes. How many packages of each type of cheese did the Tran family buy?

  8. Revisit Objective(s): Did we... • solve a system of linear equations by using multiplication and elimination?

  9. HW: Sec 11.4 pg 420 #s 7-18, 22-23, and LPT

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