Unit 2 Quiz Review

What value of x makes this equation true? 3(2x - 7) = 5(x + 1) - 8

• 5

• 18/11

• no solution

• 18

Which equation has infinitely many solutions?

• 8 + 2y = 2y + 8

• 4m + 7 = 2m + 3

• 5k - 2 = 3k + 6

• 6x + 9 = 2x + 1

Tags

CCSS.8.EE.C.7A

You buy 5 tickets to a concert from an online ticketing service. Besides the ticket price, the service adds a handling fee of $3.00 per ticket. You also opt for express shipping, which costs $12. The total amount you pay is $260. What is the price per ticket before any additional fees?

• $55.00

• $46.60

• $59.50

• $62.00

Tags

CCSS.7.EE.B.4A

For what value of b does the equation have infinitely (many) solutions?

𝑏(𝑥 -2)= -5𝑥 + 10

b=

Mathematical Equivalence

OFF

Tags

CCSS.8.EE.C.7A

Which of the equations below represents the first step of isolating m in the equation 3 + m - q = 8?

• 3 + m - q = 8

• -3 + m - q = 8

• m - q = 8 - 3

• m - q = 8 + 3

Tags

CCSS.6.EE.B.7

Which equation is correctly solved for B if A + B = C?

• B = C - A

• B = (A - C)

• B = C/A

• B = (C/A) - 1

Tags

CCSS.HSA.CED.A.4

The width, w, of a rectangle is half its length. The perimeter of the rectangle is less than 60 centimeters. Which inequality expresses all the possible widths, in centimeters, of the rectangle? Perimeter Formula: P = 2(l + w)

• w < 10

• w < 15

• w < 20

• w < 30

• x < -1. Multiply or divide by a positive coefficient keeps the same inequality sign.

• x > -1. Multiply or divide by a positive coefficient reverses (flips) the inequality sign.

• x < 1. Multiply or divide by a positive coefficient keeps the same inequality sign.

• x > 1. Multiply or divide by a positive coefficient reverses (flips) the inequality sign.

Jordan solved an inequality as shown.
Step 1: 5 ≤ 2x + 7 - x - 4
Step 2: 5 ≤ 2x - x + 7 - 4
Step 3: 5 - 7 ≤ x - 4 + 7
Step 4: -2 ≤ x + 3
Step 5: -2 - 3 ≤ x + 3 - 3
Step 6: -5 ≤ x
What property justifies the work between Step 5 and Step 6?

• Inverse property of addition

• Commutative property of addition

• Identity property of addition

• Subtraction property of inequality

• 
• 
• 
• 

Tags

CCSS.7.EE.B.4B