System of Equations Word Problem

System of Equations Word Problem

by Melissa McCann

Multiple Choice

What IS a system of equations/inequalities?

• Two or more equations/inequalities

• Multiple variables

• Where the lines cross

• A function

Open Ended

What do you think we need to solve a system of equation word problem?

​How to solve word problems

​We need to find/make the equations the word problem is referring to. We do that by

• ​Defining our variables

• ​Set up the system of equations

• ​Then solve the system

Open Ended

The sum of two numbers is 30 and their difference is 12. Find the two numbers

​How did you all solve the last problem?

​

Fill in the Blank

The cost of 3 boxes of envelopes and 4 boxes of notebook paper is $13.25. Two boxes of envelopes and 6 boxes of notebook paper cost $17. The cost of a box of notebook paper is  

​How did you all solve the last problem?

​

Multiple Choice

The sum of two numbers is 24 and their difference is 2. What are the numbers?

• 6 and 4

• 11 and 13

• 24 and 22

• 20 and 18

Fill in the Blank

The cost of 12 oranges and 7 apples is $5.36. Eight oranges and 5 apples cost $3.68. The cost of an orange

Fill in the Blank

Mary has a collection of nickels and quarters for a total value of $4.90. She has 42 coins total. The number of quarters is exactly