Equations and Inequalities STAAR Review

Kasey and her sister both sold cookie dough as a school fundraiser.  Kasey sold k tubs of cookie dough.  Her sister sold three times as many tubs of cookie dough.  If they sold a total of 88 tubs of cookie dough, then how many tubs of cookie dough did Kasey sell, k?

• 22

• 18

• 66

• 29

Ms. Hernandez is taking her children and their friends to the movies.  She will pay $10 for her adult ticket and $7 for each child ticket.  Ms. Hernandez does not want to spend more than $40.  Which inequality can be used to find c, the number of child tickets Ms. Hernandez can purchase?

• 7 + 10x > 40

• 10x - 7 ≤ 40

• 10 + 7x > 40

• 10 + 7x ≤ 40

Burger Town sells cheeseburgers for $7.95 each plus an additional $1.00 for each topping, t.  Which of the following equations best represents the cost, c, of a cheeseburger?

• c = 7.95t

• c = 8.95t

• c = 7.95t + 1.00

• c = 7.95 + 1.00t

What is the rule for inequalities?

• If you add or subtract by a negative - flip the sign.

• If you multiply or subtract by a negative - flip the sign.

• Never flip the sign, ever.

• If you multiply or divide by a negative - flip the sign.

• A

• B

• C

• D

• A

• B

• C

• D

Solve and graph the inequality.

7n - 1 > 76

• A

• B

• C

• D

What value of x makes the equation true?

• 1

• 7

• -5

• -1

Solve the equation modeled above.

• -2

• 6

• -6

• 2

The Beta Club is sponsoring a lollipop sale. If their goal is to raise at least $228, how many lollipops must they sell at $1.50 each in order to meet that goal? Write and solve an inequality.

• x ≤ 152

• x ≥ 152

• x ≤ 342

• x ≥ 342