Unit 2 Study Guide (8th Grade Math)

The expression 15 − 1.99c represents the amount of money Ivan has left over after buying c bags of cookies. What does the constant 15 represent in this context? 

• The amount of money that Ivan has left over.

• The amount of money that Ivan started with.

• The amount of money that each bag of cookies costs.

• The amount of cookies in each bag.

Tags

CCSS.HSF.LE.B.5

The expression 20 − 2.50b represents the amount of money Isabella has left over after buying b boxes of Kleenex. What does the coefficient of 2.50 represent in this context? 

• The amount of money that Isabella has left.

• The amount of money that Isabella started with.

• The amount of money that each box of Kleenex costs.

• The amount of Kleenex in each box.

Tags

CCSS.HSF.LE.B.5

6. Footlocker has a discount on shoes online for 25% off per pair if you pay for the $10 shipping cost. City Gear is also running an online promotion where you only pay 75% of the full price per pair of shoes if you pay the $6 packaging fee plus a $4 shipping fee. 

Write an expression for Footlocker to represent the cost per pair of shoes. 

• 0.25x+10

• 0.25x-10

• 0.75x+10

• 0.75x-10

Tags

CCSS.HSA-SSE.A.1A

6. Footlocker has a discount on shoes online for 25% off per pair if you pay for the $10 shipping cost. City Gear is also running an online promotion where you only pay 75% of the full price per pair of shoes if you pay the $6 packaging fee plus a $4 shipping fee. 

Write an expression for City Gear to represent the cost per pair of shoes. 

• 0.25x+4+6

• 0.25x-4-6

• 0.75x-4-6

• 0.75x+4+6

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

Footlocker has a discount on shoes online for 25% off per pair if you pay for the $10 shipping cost. City Gear is also running an online promotion where you only pay 75% of the full price per pair of shoes if you pay the $6 packaging fee plus a $4 shipping fee. 

What store should you visit to purchase your next pair of shoes? 

• Footlocker

• City Gear

• Either one

David buys 2 boxes of chips and some drinks for his classmates. The cost of each box of chips is $10.49 and the cost of each drink is $0.49. David spends a total of $24.90 on chips and drinks. If c represents the number of boxes of chips that David buys, which equation can be used to determine the correct number of drinks, d, that David buys? 

• 10.49c - 0.49d = 24.90; d = 4 

• 10.49c + 0.49d =24.90; d=9

• 10.49c + 0.49d =24.90; d=8

• 
  10.49c/0.49d=24.90;

  d=16

Tags

CCSS.8.EE.C.7B

In downtown Atlanta, visitors can rent a bicycle to ride around and explore the city. To rent the bicycle, visitors must pay a $5 one time fee and then an additional $3 for every hour it is rented. If Cayden’s total bill was $32, how many hours did he rent the bicycle? 

• 5

• 6

• 8

• 9

Tags

CCSS.7.EE.B.4A

Patrick solved the equation shown below. When did he apply the distributive property? 

• From the given equation to Line 1

• From Line 1 to Line 2

• From Line 2 to Line 3

• From Line 3 to Line 4

Equations with ONE solution have ________________ coefficients. 

• THE SAME

• DIFFERENT

Tags

CCSS.8.EE.C.7A

Equations with INFINITE or MANY solutions have ________________ coefficients and _________________ constants.

• THE SAME/

  DIFFERENT

• DIFFERENT/

  THE SAME

• DIFFERENT/

  DIFFERENT

• THE SAME/

  THE SAME

Tags

CCSS.8.EE.C.7A