4-3 Day 2 Practice

Solve the system by using the Elimination Method.

 $-7x+5y=14$  

 $6x-7y=7$  

*Include parenthesis around the solution.*

Solve the system using the Elimination Method. What is the x-value in the solution?

 $4x-5y=-6$  

 $-6x+7y=12$  

*Type the number only.*

Solve the system using the Elimination Method. What is the y-value in the solution?

 $-2x-9y=8$  

 $-5x-8y=-9$  

*Type the number only.*

Use the Elimination Method to solve the system. Identify the number of solutions this system has.

 $-5x+4y=-7$  

 $10x-8y=14$  

• Infinitely Many Solutions

• No Solution

• One Solution

Solve the system using the Elimination Method. Identify the number of solutions to the system.

 $2x+3y=8$  

 $-8x-12y=-20$  

• Infinitely Many Solutions

• No Solution

• One Solution

Solve the system using the Elimination Method. 

 $-9x-2y=-3$  

 $-2x-3y=7$  

*Include parenthesis around the solution.*

Jack and Jill both ordered pizzas from Wayne's Pizza. Jack paid $58.50 for 3 pepperoni pizzas and 2 cheese pizzas. Jill paid $67 for 2 pepperoni pizzas and 4 cheese pizzas. Write two equations (one for each pizza order) where x represents the cost of a pepperoni pizza and y represents the cost of a cheese pizza.

• $2x+3y=58.50$

• $3x+2y=58.50$

• $2x+4y=67.00$

• $4x+2y=67.00$

Surfside Rentals rents umbrellas for $4.00 an hour plus a deposit of $8.00. Beach Bums rents umbrellas for a flat fee of $6.00 an hour with no deposit. Write two equations (one for each business) to show the total cost, y, for x hours to rent an umbrella.

• $y=4x+8$

• $y=8x+4$

• $y=6x+8$

• $y=6x$