Review Solving System of Equations and Inequalities

Check to see if (-2,1) is a solution to the following system:

 $x+2y=0$  

 $4x+3y=1$  

• yes

• no

What is the solution to the system?

• (3, -1)
• (2, -6)
• No Solution 
• (6, -2)

Leslie joins a fitness club that has a membership fee of $20 plus $15 per month. Rashad’s club has a fee of $40 and charges $10 per month. Which system best represents this situatio s

• y = 20x + 15

  y = 40x + 10

• y = 20x - 15

  y = 40x - 10

• y = 15x + 20

  y = 10x + 40

• y = 15x - 20

  y = 10x - 40

Solve using the substitution method.

y = -7x +19

3x + 2y = 16

The answer should be written as an ordered pair.

(a)  

Solve the system by elminiation:

4x + 8y = 20

-4x + 2y = -30

(a)  

You have a total of 17 coins.  All of your coins are nickels and dimes.  The total value of the coins is $1.35.  Which system of equations represents this situation?

• n+d=17
  .05n+.10d=1.35
• .05n+.10d=17
  n+d=1.35
• .25n+.10d=1.35
  n+d=17

An inequality using a > or a < has a ___________ line

• invisible
• solid
• dashed

Select all orders pairs that satisfy the system of inequalities

• (4, 1)

• (2, 0)

• (2, -2)

• (3, -4)

Erin is 3 years younger than twice Alex's age. Their ages combined are 33 years. How old are Alex and Erin. If x=Erin's age and y=Alex's age, choose the system that matches the situation.

• 
• 
• 
• 

Solve the system of equations using Elimination. The x-value is...

• x = -6

• x = -5

• x = 5

• x = 3