Question

Help with 8th-grade middle school math SHOW WORK

answer question 21 only with the shown work and what the polygon angles are

Answer 1

x= 72.72 (with a line over it)

Explanation:

(x - 5) + (1.4x) + (x) + (x + 35) = 360

Step 1. Simplify both sides of the equation.

x + 5 + 1.4x + x + x + 36 = 360

(x + 1.4x + x + x) + (5 + 35) = 360 (combine like terms)

4.4x + 40 = 360

Step 2. Subtract 40 from both sides.

(4.4x + 40) - 40 = (360) - 40

4.4x = 320

Step 3. Divide both sides by 4.4

4.4x/4.4 = 320/4.4

x = 72.72 (72 repeats, so 72 with a line over it)

Hope this helps! And sorry it took so long for someone to respond

Answer 2

7

Explanation: