Unit 2A study guide

1) What is a word phrase to represent the expression 5(n-16)?

• sixteen less than a number times five

• five times the difference of a number less than sixteen

• five times sixteen minus a number

• sixteen minus a number times five

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

2) What expression represents four fifths time the difference of seven and forty-two times p?

• ⅘ x 7 - 42p

• (⅘ x 7 - 42p)

• ⅘(7 - 42p)

• 45 x (4 - 42p)

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

3) It takes 45 minutes to create a house in minecraft. Write an algebraic expression to describe the number of minutes it takes to create h houses in minecraft.

• 45 + 45h

• 45h

• 45 + h

• 45 ÷ h

Tags

CCSS.6.EE.A.3

CCSS.6.EE.A.2

CCSS.6.EE.B.6

4) An electrician charges a flat rate of $35 per job plus $29.75 per hour. Write an expression that represents the cost of a job lasting n hours.

• 35n + 29.75

• 35 + 29.75 + n

• 64.75n

• 35 + 29.75n

Tags

CCSS.HSA-SSE.A.1A

5) Simplify the expression.

7n² + 5n - 2 - 9n² - 9n +1

• 16n² + 14n + 3

• -2n² - 4n - 1

• 2n² + 4n + 1

• 16n² - 14n - 3

Tags

CCSS.7.EE.A.1

6) Simplify the expression.

-10c + 4e - 3 - e + 7c - 7 + ¼c

• -2¾c +3e - 10

• 31¼ce

• 5e -4 + ¼c - 3c

• 2¾c -5e - 3c

Tags

CCSS.7.EE.A.1

7) A triangle has side lengths of (x+4) inches, (2x - 3) inches and (5x) inches. What is the perimeter of the triangle?

• 8x - 1

• 7x -1

• 7x + 7

• 8x + 1

Tags

CCSS.7.EE.A.1

8)Use distributive property to expand the following

-5(3 + 7w)

• 50w

• -15 + 7w

• -35w - 15

• 15 + 35w

Tags

CCSS.6.EE.A.3

9) Use distributive property to expand the following

¼(36m + 12)

• 9m + 3

• 36/4m + 12

• 12m

• 9m + 12

Tags

CCSS.6.EE.A.3

10) Distribute and simplify the given expression:

6x + 3(x+5)

• 9x + 5

• 3x +15

• 9x + 15

• 3x + 8

Tags

CCSS.6.EE.A.3