Systems of Equations Elimination Word Problems

Amanda and Ndiba are selling flower bulbs for a school fundraiser. Customers can buy packages of tulip bulbs (x) and bags of daffodil bulbs (y). Amanda sold 6 packages of tulips and 12 bags of daffodils for a total of $198. Ndiba sold 7 packages of tulips and 6 bags of daffodils for $127. Find the cost of one tulip package and one daffodil bag.

The school that Lisa goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 4 senior citizen tickets (x) and 5 student tickets (y) for a total of $102. The school took in $126 on the second day by selling 7 senior citizen tickets and 5 student tickets. What is the price each of one senior citizen ticket and one student ticket?

Castel and Gabriella are selling pies for a school fundraiser. Customers can buy apple and lemon meringue pies. Castel sold 6 apple pies (x) and 4 lemon meringue pies (y) for a total of $80. Gabriella sold 6 apple pies and 5 lemon meringue pies for a total of $94. What is the cost of one apple pie and one lemon meringue pie.

The school that Imani goes to is selling tickets to the annual dance competition. On the first day of ticket sales the school sold 3 senior citizen tickets (x) and 3 child tickets (y) for a total of $69. The school took in $91 on the second day selling 5 senior citizen tickets and 3 child tickets. What is the price of one senior citizen ticket and one child ticket?

• A

• B

• C

• D

Solve by elimination:

7x - 9y = 29

7x + 2y = - 15

• (-4,-1)

• (-1.-4)

• (-1,4)

• (-1,6)

4x+ 9y = 28

-4x -y = -28

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

• (6,7)

• A

• B

• C

• D

what is the variable that willl be "eliminated"?

5x - 4y = 11

5x + 4y = -14

• x variable

• y variables

• both variables

Select the best choice.

• 1

• 2

• 3

• 4