Practice Final Apex Unit 4 Linear Equations (1st semester)

2x - 5 = 45

2x-5-5=45-5

2x = 40

2x/2 = 40/2

x = 20

• The problem was solved correctly.

• There is a mistake and the correct answer is x = 25.

Tags

CCSS.7.EE.B.4A

How many solutions does 5 - 3x = 4 + x + 2 -4x

• One solution

• Two solutions

• No solution

• Infinitely many solutions

Tags

CCSS.8.EE.C.7A

Solve x + 17 = 6(x+1) +1

• There are infinitely many solutions

• $x\ =\ -\frac{7}{5}$

• x = 2

John has 85 cents in his pocket. Four of the coins are dimes, and the rest are nickels. How many nickels does he have?

• 8

• 7

• 15

• 9

Tags

CCSS.4.MD.A.2

 $\sqrt{81}$  

• 10

• 9

• 20

• 8

Tags

CCSS.8.EE.A.2

What is the cube root of 125?

• 5

• 25

• 15

Tags

CCSS.8.EE.A.2

 $What\ value\left(s\right)\ of\ x\ will\ make\ x^2=64\ true?$  

• 8

• 4

• 4 and -4

• 8 and -8

Tags

CCSS.8.EE.A.2

 $Solve\ y^3\ =\ 64$  

• 4

• -4

• 8

• -8

Tags

CCSS.8.EE.A.2