Unit 7 Review

Which of these keywords could be represented with the inequality sign:  $\ge$ ?

• No more than 

• More than 

• At least 

• Less than 

Which solution is being graphed on the number line above?

• x $<$ 6

• x $\le$ 6

• x $>$ 6

• x $\ge$ 6

Which situation can be represented by 22x  $>$ 421?

• Beth has 22 badges for her Girl Scouts troop. Her goal is to have at least 421. How many more badges, x,  must Beth earn to reach her goal?

• Katy bought 22 more baseball cards at the store. She now has more than 421. How many baseball cards, x, did she buy at the store?

• A video game costs $22 including tax. How many video games, x,  can a customer buy with $421?

• Bill can type 22 words per minute. How many minutes does he need to type in order to type more than 421 words?

Which of the following is a step you would use to solve this inequality?

                                w + 54  $<$  78

• Multiply both sides of the inequality by 54

• Subtract 54 from both sides of the inequality

• Add 54 to both sides of the inequality

• Divide both sides of the inequality by 54

Which equation is true if x = 2.1?

• -2 + x = 0.1

• -2x = -4.2

• Both are true

• Neither are true

Which inequality shows a "maximum of 40"?

• x - 3  $>$  40

• x - 3  $<$  40

• x - 3  $\le$  40

• x - 3  $\ge$  40

Which graph shows the solution for the inequality                 12b  $>$  180

• 
• 
• 
• 

Which situation is represented by m + 24= 53?

• There are 53 players on each NFL team. There are also 24 coaches. What is m, the total number of members on the team?

• Will sold 53 cars in 2 months. He sold 24 cars in February and the rest in March. What is m, the number of cars Will sold in March.

Complete the following equation:

-15 = ____ + -35

• -50

• 50

• -20

• 20

Which of these equations is true if x =  $\frac{2}{3}$  

• 36x = 24

• x - 1 =  $\frac{1}{3}$  

• Both are true

• Neither are true