Chapter 1 Quiz #1

What equation matches this situation?
John wants to buy an MP3 Player that costs $30.98.  How much change did he receive if he gives the cashier $40.

• 40 + c = 39.98
• 30.98 + c = 40
• c - 40 = 39.98
• c - 39.98 = 40

Tags

CCSS.HSA.CED.A.3

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.
• Add 7 to both sides.
  The solution is x = 19.
• Multiply both sides by 7 The solution is x = 84.

Tags

CCSS.6.EE.B.7

-4y = 48

• x = -52

• x = -12

• x = -44

• x = -13

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5
• Add 6 to both sides and multiply both sides by 5
• Subtract 6 from both sides then multiply both sides by 5
• Subtract 6 from both sides then divide both sides by 5

Tags

CCSS.7.EE.B.4A

Solve     -5t + 9 = 24

• -3
• 3
• 12

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

3a + 9 + 4a = 2

• -1
• 1
• no solution
• -7

Tags

CCSS.8.EE.C.7B

4(a + 3) = -32

• -11
• -44
• -20
• -8

Tags

CCSS.7.EE.B.4A

⅔x - 5 =7

• x=18

• x=10

• x=8

• x=11

Tags

CCSS.7.EE.B.4A

Is 13.7 the solution to b - 10.5 = 5.25

• yes

• no

Tags

CCSS.6.EE.B.5

3x + 2(4x - 4) = 3

• 4
• 3
• 2
• 1

Tags

CCSS.8.EE.C.7B