Final Test: Solving Equations & Inequalities

Solve for x: $\frac{x}{5}=2$  

• x = 20

• x = 7

• x = 10

• x = 3

Judy is saving to buy a pair of shoes that cost $120. She has saved $30 and is going to save $25 a week. Which equation will show her how many weeks she must save?

• 120 = 25x + 30

• 120 = 55x

• 120 = 25x + 30x

• 25x = 120 + 30

Write an equation for
 17 less than H equals 42

• 17-H=42
• H-17=42
• H+17=42
• 17+H=42

Solve:

 $-3\le2x-1\le5$  

• -1 ≤ x ≤ 3

• -1 < x < 3

• 1 < x < 3

• 1 ≤ x ≤ 3

 $-4x-7\ge21$  

• x ≥ 7

• x ≥ -7

• x ≤ 8

• x ≤ -7

Solve:
 $3x+2<-4\ or\ 4x+4>24$  

• x < -2 or x > 5

• x < 2 or x > 5

• x < -2 and x > 5

• x < 2 and x > 5

 $8x-4\left(x+8\right)=8$  

• x = 2

• x = 10

• x = 4

• x = -4

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• 7x + 35 = 63
• 7x = 63
• 7x - 35 = 63
• 35x + 7 = 63

d = rt, solve for r

• r = dt

• r = d/t

• r = d - t

• r = d + t

Solve for T, B = T - Lc

• T = BLc

• T = B - Lc

• T = $\frac{B}{Lc}$

• T = B + Lc