St 13 SYSTEMS EOC REVIEW

A system -5x + 2y = 2 and -9x + 3y = 9. What is the value of xy?

A system x - 2y = -7 and -3x - 2y = 29. What is the value of x+y?

A system -8x - 9y = -30 and -2x - 2y = -8. What is the value of x-y?

• (2,-8)

• (0,-8)

• (1,-9)

• (4,0)

• (-7.8, 10.8)

• (-9,23)

• (10,-15)

• (2.5,5)

Determine if the following system of equations has no solutions, infinitely many solutions, or exactly one solution.

x + y = 6

-2x - 2y = -12

• One solution

• No Solution

• Infinitely Many Solutions

Determine if the following system of equations has no solutions, infinitely many solutions, or exactly one solution.

4x + y = -8

-8x - 2y = 14

• One solution

• No Solution

• Infinitely Many Solutions

Determine if the following system of equations has no solutions, infinitely many solutions, or exactly one solution.

3x + 2y = 12

9x - 3y = 21

• One solution

• No Solution

• Infinitely Many Solutions

A jar has quarters and dimes in it. There are a total of 16 coins in the jar for a total value of $2.65. How many quarters are in the jar?

Two pigs were born on the farm. Pig A weighed 3 less than twice the weight of Pig B. The combined weight of the pigs is 12 pounds. Find the weight of Pig A.