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Grade 9 Math Starter Lesson: Systems of Linear Equations

Last updated over 1 year ago
6 questions
Note from the author:
In this lesson, you will setup and solve a system of equations in order to solve a real-world problem.

Essential Question: How do I use systems of equations to solve real-world problems?
In this lesson, you will setup and solve a system of equations in order to solve a real-world problem.

Essential Question: How do I use systems of equations to solve real-world problems?
Rewatch the video as needed to answer the questions below.
1

What types of coins do you see? Select all correct answers.

1

What do you think is the total value of the coins?

1
Let p be the number of pennies and q be the number of quarters.

If the total value of the coins is \$68.00, fill in the blanks to write an equation representing the value of coins in the picture:
0.25_______ +_______ p = _______
1

Let p be the number of pennies and q be the number of quarters.

If there are 560 total coins in the video, write an equation to represent the total number of coins.

1

Let the number of quarters be represented by the y-axis and the number of pennies by the x-axis.

Graph your system of equations on the coordinate plane.

  • Click the graph tab.
  • Click on the graph background to add a point. Add two points to create a graph. Drag a point or type in x and y coordinates to edit its position. Click on a point to delete it.
1
Determine the number of each coin in the video.

There were _______ quarters and _______ pennies.