Algebra Readiness Practice (22-23)

Answer explanation

Example:

• Danny needed to find the Least Common Multiple to find a common denominator of the fractions before adding.

• Danny left his answer as an improper fractions

• Danny did the wrong operation, he did not add.

• Danny did not make a mistake.

Answer explanation

Remember,

Step 1: Find the Least Common Multiple to find a common denominator

• 8  ¹/35
• 8  ¹²/35
• 9
• 8  ⁴/₁₅

Simplify by combining like terms:

8 + 3x - 2 + x

• 4x + 6

• 6 + 4x

• 3x + 10

• 3x + 6

Simplify the expression:

9(x + 2)

• 9x + 2

• 9x + 18

• 9 + x + 2

• 11x

Simplify the expression:

5(4 - 2x) + 3x

• 13x + 20

• 5x + 20

• x + 20

• -7x + 20

What expression represents the perimeter of the triangle in simplest form?

• 3x + 2

• x + 10

• 13x

• 3x + 10

• 19

• -19

• 15

• -15