STAAR Quizizz 8.8C

Two customers spent the same total amount of money at a restaurant.

*The first customer bought 8 hot wings and left a $4 tip.

* The second customer bought 10 hot wings and left a $2.80 tip.

* Both customers paid the same amount per hot wing.

How much does one hot wing cost at this restaurant in dollars and cents?

Mathematical Equivalence

ON

Two student groups went to an amusement park on the same day.

* Group 1 bought 9 tickets and received a $120 discount.

* Group 2 bought 3 tickets and received a $30 discount.

* Both groups spent the same total amount of money on tickets.

* The price of each ticket was the same.

What was the cost of each ticket?

• $25

• $12.50

• $15

• $7.50

A college has two classrooms of students.

* Classroom A had 70 students.

* Classroom B had 30 students.

* Classroom A sent groups of 4 students to Classroom B until both classrooms had the same number of students.

The equation shown can be used to find the number of groups that Classroom A sent to Classroom B so each classroom had the same number of students.

70 - 4x = 30 + 4x

How many groups did Classroom A send to Classroom B?

Mathematical Equivalence

ON

The side lengths in yards of a triangle and a square are shown in the diagram.

The perimeter of the triangle is equal to the perimeter of the square. What is the value of x?

• -4

• 6

Aquarium I contains 4.6 gallons of water. Louise will begin filling Aquarium I at a rate of 1.2 gallons per minute.

Aquarium II contains 54.6 gallons of water. Isaac will begin draining Aquarium II at a rate of 0.8 gallon per minute.

After how many minutes will both aquariums contain the same amount of water?

• 148 min

• 125 min

• 25 min

• 50 min

What value of x makes this equation true?

12x - 15 = 6 - 3x

Julie started with 20 pieces of gum and gave away x pieces. Conrad started with 35 pieces of gum and gave away twice as many pieces as Julie did.

How many pieces of gum did Julie give away if they had the same number of pieces of gum left?

• 18

• 5

• 15

• 8

What is the solution to this equation?

2x + 3 = x - 4

Mathematical Equivalence

ON

The model represents an equation.

What value of x makes the equation true?

Mathematical Equivalence

ON

What value of x makes this equation true?

• 3

• -9

• -1

• 27