Lesson 18-19 Review

Lesson 18-19 Review

Use this Quizizz to help you prepare for your Lesson 18-19 quiz. It would also be helpful to watch all of the videos. The videos have a few extra problems in them to help you review, but they are not part of the actual quizizz.

Multiple Choice

Megan buys a bag of chips for $2.99. She then buys 3 candy bars that all cost the same amount. The total cost is $4.55. To find the cost of each candy bar, which equation would be used?

• 3c + 2.99 = 4.55

• 3c = 4.55

• c + 2.99 = 4.55

Multiple Choice

Megan buys a bag of chips for $2.99. She then buys 3 candy bars that all cost the same amount. The total cost is $4.55. What is the cost of each candy bar? Use the equation 3c + 2.99 = 4.55 (the answer to the previous question). Make sure you can show ALL of your WORK on your quiz.

• $0.52

• $1.56

• $1.52

• $0.99

Multiple Choice

Four cousins are born on the same date in consecutive years. The sum of their age is 42. Which equation can be used in this situation?

• c + c + c + c = 42

• c + 1 + c + 1 + c + 1 + c + 1 = 42

• c + c + 1 + c + 2 + c + 3 = 42

• c + 42 = 4

Multiple Choice

Four cousins are born on the same date in consecutive years. The sum of their age is 42. Use the equation c + c + 1 + c + 2 + c + 3 = 42 (the equation from previous problem) to show your work, solve for all 4 of their ages, and choose the correct answer.

• The youngest cousin is 9

• The oldest cousin is 9

• The middle cousin is 9

• They are all 10

Multiple Select

The length of a rectangle is represented by (4x - 5). The width of the rectangle is represented by 3x. The perimeter is 18. Which equations represent the perimeter? Select ALL that apply.

• 4x - 5 + 3x = 18

• 4x - 5 + 4x - 5 + 3x + 3x = 18

• 2(4x - 5) + 2(3x) = 18

• 14x - 10 = 18

• 7x = 18

Multiple Choice

Solve this equation and show all of your work.

-3.9 = 3x - 2.4

• -0.5

• -1.1

• 0.5

• -4.5

Multiple Choice

Which of the following is the solution of

$$-8\left(n-3\right)\le-56$$  

• $$n\ge10$$  

• $$n\le10$$  

• $$n\le4$$  

• $$n\ge4$$  

Multiple Choice

Mark makes trail mix with bulk nuts and dried fruit. He spends $4 on the dried fruit. Mixed nuts cost $2 per pound. He has a total of $15 to spend.

Which number line best represents the possible numbers of pounds of nuts he can buy?

Multiple Choice

Juan is going to the amusement park with some of his friends. He can spend at most $80 at the park on admission and games. The admission to the park is $53. He is planning on playing some games that cost $3 each. What is the most amount of games he will be able to play. Write an inequality and explain your answer.

• $$53+3x<80$$ ; The amount of games he can play is 8, since $$x<9$$ .

• $$53\ +\ 3x\ \le80$$ ; The most amount of games he can play is 9, since $$x\le9$$ .

• $$3\ +\ 53x\ <80$$ ; The most amount of games he can play is 1, since x < 1.5.

• $$3\ +\ 53x\le80$$ ; The most amount of game he can play is 1, since $$x\le1.5$$ .

Multiple Choice

Jaquan is building a chicken coop. The area of the chicken coop is 50 square feet. Each chicken needs at least 4 square feet of space. 

Using the inequality

$$4c\le50$$  , which of the following statements would be true?

• The coop can hold 12 or more chickens.

• The coop can hold exactly 46 chickens.

• The coop can hold 0 - 12 chickens.

• The coop can hold less than 46 chickens.