Review for L17-20 Quiz

Review for L17-20 Quiz

How to Write Equivalent Expressions

• Commutative Property - change the order

• Break up terms into smaller numbers that add together (or can be multiplied) to equal that number

• Apply the Distributive Property

• Associative Property - change the grouping

Multiple Choice

Which of the below expressions is equivalent to 6a + 10?

• 5 + 5 + 3a + 3

• -3a - 3a + 10

• 5 + 5 + 4a + 2a

• 2(6a + 5)

Multiple Choice

Which of the below expressions is equivalent to -2(5y + 1)?

• -10y + 2

• -10y - 2

• -2 + 10y

• 5y - 2

Investments / Transaction Logs

• When working from the top down,

• Withdrawals, Payments or Losses are subtracted

• Deposits or Gains are added

Fill in the Blank

You have a beginning balance of $1500 in your checking account and then make a payment of $350 to Discover for your credit card bill. How much money do you have now?

Writing Expressions to Represent Real-World Scenarios

• An expression has no equal sign

• To write an expression for Profit,

• Revenue - Expenses OR Earnings - Costs

Multiple Choice

The soccer team is selling raffle tickets for their annual fundraiser event to raise money to buy equipment. They sold tickets to p people for $25 each. The had to pay $150 for refreshments and $25 for advertising for the event. Which of the following is an expression that represents the profit earned?

• 25 + p - 150 - 25

• 150 + 25 - 25p

• 25p - 150 - 25

• 25 + p -150 - 25

Tape Diagrams

• Visual representation of an equation

• Shaped like a piece of tape (rectangle)

• Divided into boxes

• Entire tape diagram represents the total

Multiple Choice

Which of the following is an equation that represents this tape diagram?

• 5(b + 3) = 30

• 5b + 3 = 30

• b + 15 = 30

• b + 3 = 30

Fill in the Blank

What does 'b' equal in this tape diagram?