Unit 6 Test IM 7th grade

Lin got a $50 gift card to an online music store. She uses the gift card to buy an album for $9.99. She also wants to use the gift card to buy some songs. Each song costs $1.29.

Which of these inequalities describes this situation, where n

is the number of songs Lin wants to buy?

• 9.99+1.29n≥50

• 9.99+1.29n≤50

• 9.99−1.29n≥50

• 9.99−1.29n≤50

Tags

CCSS.7.EE.B.4B

Which number line shows all the values of x that makes the inequality true?

• a

• b

• c

• d

Tags

CCSS.7.EE.B.4B

Select all expressions that are equivalent to 6x+1−(3x−1)

• 6x+1−3x−1

• 6x+-3x+1+1

• 3x+2

• 6x−3x+1−1

• 6x+1+-3x−-1

Tags

CCSS.6.EE.A.3

The answer to this inequality 5 − 2t < -4 is t > 9/2

Why does the inequality change from the less than symbol to the greater than symbol.

• I will divide by a negative 2.

• I will multiply by a negative 2.

• I will add negative 2.

• I don't know; I am negative.

Tags

CCSS.7.EE.B.4B

-6k + 7k=

• k
• -k
• 12k
• -12k

Tags

CCSS.7.EE.A.1

n -10 +9n -3=

• -3
• 9n-3
• n
• 10n -13

Tags

CCSS.7.EE.A.1

Simplify the following expression:
19 - ( 3 - 5b)

• 16 + 5b
• 21 + 5b
• 16 - 5b
• 21 - 5b

Tags

CCSS.7.EE.A.1

Simplify: -2(y - 4) + 5y

• -7y + 8
• 3y + 8
• 3y - 8
• -7y - 8

Tags

CCSS.6.EE.A.3

Factor: 5x - 35

• 5(x + 7)
• (x - 7)
• 5(x - 7)
• (x + 7)

Tags

CCSS.7.EE.A.1

Simplify the expression:
6 + 2(7x - 3) 

• 12 + 7x
• 14x
• 14x + 3
• 9 + 7x

Tags

CCSS.6.EE.A.3