Modeling With Two-Step Equations

You are raising money for a charity. You are selling tickets for a dinner for $20 each and the expenses for the dinner add up to $2300. Choose the correct model to solve this problem.

• 20n + 2300 = C

• 20n - 2300 = c

• 20 + 2300n = c

• 20 - 2300n = c

6x + 18 = 36, solve for x

• 2

• 3

• 4

• 5

You use inverse operations to solve equations.

• True

• False

What is the first step in solving a 2 step equation?

If you pay $150 dollars a credit hour and a parking fee of $20 and have $1000 dollars to spend for tuition. How many credit hours can you take?

• 6.533

• 6.53

• 6.5

• 6

A variable is used to represent a known quantity.

• True

• False

You can use an equation to model a word problem.

• true

• false

Which equation is modeled?

• x + 3 = 9
• x - 3 = 9
• 3x = 9
• 3x - 3 = 9

What would be the first step to solving the following equation?

• Divide both sides by 11

• Multiply both sides by 11.

• Add 11 to both sides.

• Subtract 11 to both sides.

How can 4(3 +9) be expressed using the distributive property?

• 4(3) + 4(4 + 9)

• 4(3) + 4(9)

• 4 + 9 = 9 + 4

• (4 + 3) x (4 + 9)