Unit 1 8.PAR.3 Review

Multiple Choice

I am saving money in my bank account using this expression 50 + 10m. What does the 50 represent?

• My bank account number

• How much I will save each month

• The amount of money I started with

• How many months I will save

Multiple Choice

A holiday meal costs $12.50 a person plus a delivery fee of $30.  Which equation represents the amount a holiday meal costs, including delivery, for x people?

• y = 30 + 12.5x 
• y = 12.5 + 30
• y = 12.5 + 30x

Multiple Choice

Sandra has a $20 itunes gift card and spends $3 each month. Which equation can be used to find how much money Sandra has on her giftcard after x months?

• y = 3x + 20

• y = 3 + 20x

• y = 20 - 3x

• y = -20x + 3

Multiple Choice

A reception hall charges a flat fee to rent the room and a cost per guest. The expression 19x + 250 represents the cost to rent the hall. What is the flat fee?

• 250

• 19

• 19x

• depends on the number of guests

Multiple Choice

Mallory bought pizza and soda for a party. If she spent $12.57 on the sodas and $10.95 for each pizza, how many pizzas did she buy if her total is $89.22?

• 10.95x + 12.57 = 89.22

• 12.57x + 10.95 = 89.22

• 89.22x -10.95 = 12.57

• 12.57 + 10.95 = 89.22

Multiple Choice

Solve:
C = 2πr, for r

• C/(2π) = r
• C + 2π = r
• C - 2π = r
• 2πC = r

Multiple Choice

Solve:

9x + 7 − 5x = 4x − 7

• x = 7

• x = -7

• infinitely many solutions

• no solutions

Multiple Choice

Solve:

3(x − 2) = 3x − 6

• x = 6

• x = -6

• infinitely many solutions

• no solutions

Multiple Choice

Which property of real numbers was used to get from Step 3 to Step 4?

• Addition Property of Equality
• Subtraction Property of Equality
• Additive Inverse Property
• Substitution Property

Multiple Choice

Which property of equality was applied if 3x = 15, then x = 5?

• Subtraction Property of Equality
• Addition Property of Equality
• Division Property of Equality
• Multiplication Property of Equality