Model and Solve Equations

Solve for x:
8x - 10 = -34

• 4

• 3

• -3

• -24

Solve for k. 

7k – 2 ≥ -9

• k ≤ -1

• k≤1

• k≥1

• k ≥ -1

The model represents tan equation. What is the value of x?

• x = 14

• x = 7

• x = 4

• x = -4

Daniel can spend no more than $40 at the fair. If admission into the fair is $10 and the rides cost $1.50 each, which inequality represents the greatest number of rides Daniel can go on?

• 10x + 1.50 ≥ 40

• 1.50x + 10 ≤ 40

• 1.50x + 10 <40

• 10x + 1.50 < 40

-3y + 2 > 11

• y < -3

• y > -3

• y < 3

• y > 3

Write the equation for the model. (white square=1 rectangle=x red square = -1)

• 7=x+3

• 7=x+(-3)

• 7=-x+3

• -7=x-3

What is the solution to this inequality?

• x > −18

• x > 9

• x > 21

• x > −42

If x=14, which equation is true?

• 3(20-x)=44

• 3(12-x)=6

• 2(x-3)=22

• 2x-3=22

Harris Publications is having some books printed. The printer charges $800 plus $5 per book. What equation could help me find how many books can be printed for $4,000?

• 800 + 5x = 4000

• 800x + 5 = 4000

• 4000 + 5x= 800

• 800 + 5 = 4000

• 4000 = 800 + 5

Solve the equation.

• x=-5

• x=-1

• x=-15

• x=-3