Write an expression for the perimeter of the triangle shown below: (4 points)

Mathematics

1 answer:

mario62 [17]3 years ago

7 0

Answer:

The expression of the perimeter of the triangle is 0.1x - 16 ⇒ C

Step-by-step explanation:

<em>The perimeter of a triangle is the sum of the lengths of its sides</em>

Let us solve the problem

∵ The lengths of the sides of a triangle are:

0.5x + 9
3x
-3.4x - 25

∵ The perimeter of the triangle = sum of lengths of its sides

∴ The perimeter = (0.5x + 9) + (3x) + (-3.4x - 25)

→ Add the like terms

∵ The perimeter = (0.5x + 3x - 3.4x) + (9 + -25)

→ Remember (+)(-) = (-)

∴ The perimeter = (3.5x - 3.4x) + (9 - 25)

∴ The perimeter = 0.1x + -16

∴ The perimeter = 0.1x - 16

The expression of the perimeter of the triangle is 0.1x - 16

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