Unit 3.4 Class Quizizz

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.

• x + y = 33
  y = 2x - 3
• x + y = 33
  x = 2y - 3
• x + y = 33
  x = 3 - 2y
• x + y = 3
  x = 33 - 2y

You have 12 coins in quarters and dimes.  If your coins total $1.95, how many of each do you have?  What is the setup for the system of equations?

• q + d = 1.95
  q + d = 12
• q + d = 12
  q(d)= 1.95
• q + d = 12
  25q +10d= 1.95
• q + d =12
  .25q + .10d = 1.95

The sum of two numbers is 13. The sum of their squares is 97. Find the 2 numbers

• {3,10}

• {-3,-10} and { 3,10}

• {4,9}

• {5,8}

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (2, 0)

What is the solution?

• One Solution
• No solution
• Infinitely Many Solutions
• (0, -1.5)

A ________________ is a set of two or more equations that have the same variables.

• solution of a system
• elimination method
• system of equations
• table

The ordered pair that satisfies all equations in the system.

• system of equations
• function
• graph
• solution of a system

What kind of lines have no solution to a system of equations

• Parallell Lines
• Overlapping lines
• Intersecting Lines
• Skew Lines

A test has twenty questions worth 100 points.  The test consists of True/False questions worth 3 points each and multiple choice questions worth 11 points each.  How many multiple choice questions are on the test?

• 20 Multiple Choice
• 10 Multiple Choice
• 15 Multiple Choice
• 5 multiple choice