Equations and Inequalities SOL Review

Which expression represents four less than half a number, n

• 4-1/2n

• 1/2n-4

• 1/2(4-n)

• 1/2(n-4)

Which expression is equivalent to 1/6(30x-24y)-1/8(32x-16y)

• x-6y

• x-2y

• 2x-4y

• 9x-6y

What is the value of this expression when n=-15.

-2 In+6I

• -42

• -18

• 18

• 42

A formula to find the angle measures of an isosceles triangle is shown.

180=2x+y

Which equation can be used to find x?

• x = (180-y)/2

• x = (180+y)/2

• x = 90-y

• x = 90+y

What value of x makes this equation true?

3x-20 = -2x

• -20

• -4

• 4

• 20

Christopher incorrectly solves an inequality as shown.

Step 1: -4(x-7)+1 < -3

Step 2: -4(x-7) < -4

Step 3: -4x+28 < -4

Step 4: -4x<-32

Step 5: x < 8

Between which two consecutive steps did Christopher make a mistake?

• Step 1 and 2

• Step 2 and 3

• Step 3 and 4

• Step 4 and 5

(3n-7)/6 = (2n+5)/3

• 17

• 3

• -3

• -17

Based on the transitive property, complete this statement.

If 2(y-3) > 3x-4 and 3x-4 > 6-y, then 2(y-3)>

• 3x-4

• 6-y

Renee is going bowling. The cost per game is $2.50. Renee will need to rent a pair of bowling shows for $1.50. She can spend up to $16 to bowl and rent shoes. What is the maximum number of games that Renee can bowl?

• 4

• 5

• 6

• 9

Tags

CCSS.7.EE.B.4B

Travis would like to buy some toys to donate to charity. He plans to buy 9 dolls at d dollars each, 2 toy cars at c dollars each, and 3 train sets at t dollars each. Which expression represents the total cost, in dollars, of these items that Travis wants to buy?

• 9c+2t+3d

• 9d-2c-3t

• 9d+2c+3t

• 9c-2t-3d