Unit 4 Study Guide

Evaluate:

• 70

• 42

• 112

• 1018

Evaluate

• 
• 
• 
• 

Find the GCF and LCM of 15 and 45.

• GCF: 15

  LCM: 45

• GCF: 15

  LCM: 19

• GCF: 5

  LCM: 45

• GCF: 3

  LCM: 5

Jessica is having a cookout, and wants to serve her guests hotdogs from the grill. Hotdogs come in a package of 10 and buns come in a package of 8. How many total hotdogs will Jessica be able to serve if she wants to buy the least number of packages of hotdogs and buns and wants no leftovers?

• 20

• 40

• 80

• 120

How many packages of hot dogs and packages of buns would Jessica need to purchase to ensure she has exactly enough (no leftovers) to serve at the cookout?

• Jackie will need to buy 2 packages of hotdogs and 3 packages of buns

• Jackie will need to buy 3 packages of hotdogs and 4 packages of buns.

• Jackie will need to buy 4 packages of hotdogs and 5 packages of buns.

• Jackie will need to buy 5 packages of hotdogs and 6 packages of buns

Tickets for the school play cost $2.00 for students and $5.00 for adults. Which expression gives the total cost of tickets for x students and y adults?

• X + Y

• 2x + 5y

• 7(x+y)

• 10xy

Tickets for the school play cost $2.00 for students(x) and $5.00 for adults(y). How much would it cost for a family of 4 adults and 5 students to attend the play? (2x + 5y)

• $30

• $7

• $10

• $16

Ashley wishes she could have 3 times the amount of jelly beans Stacy has. Which expression shows Ashley’s wish?

• 3 + b

• 3 - b

• 3/b

• 3b

Mrs. Bryant’s class sold popcorn to raise money for their class trip. They made $1.75 on each bag of popcorn sold. The school also gave the class $100 towards the cost of the trip. The total amount of money the class raised can be found using the expression below in which p is the number of popcorn bags sold. 1.75p + 100 How much money did Mrs. Bryant’s class raise if they sold 184 bags of popcorn?

• $324

• $374

• $422

• $497

Which two expressions are equivalent to 15x + 30y?

• 5(3x + 6y)

• 5(15x + 6y)

• 5x + 5x + 5x + 15y + 15y

• 8x + 3x + 3x + x + 16y + 13y + y

• 15(x + 30y)