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

A: 10x − 9
B: 10x − 39
C: 5.5x − 9
D: 5.5x + 9
I don't normally ask questions so ill just give 100 points to who can answer this

Write an expression for the perimeter of the triangle shown below linked A 10x 9 B 10x 39 C 55x 9 D 55x 9 I dont normally ask questions so ill just give 100 poi class=

Respuesta :

Solution:

The perimeter of the triangle is basically the sum of its sides.

[tex]\rightarrow P = (0.3x + 24) + (5x) + (0.2x - 15)[/tex]

Open the parenthesis:

[tex]\rightarrow P = 0.3x + 24 + 5x + 0.2x - 15[/tex]

Combine like terms:

[tex]\rightarrow P = x(0.3 + 0.2 + 5) + (24 - 15)[/tex]

Simplify the equation:

[tex]\rightarrow P = x(5.5) + (9)[/tex]

Further simplify:

[tex]\rightarrow P = 5.5x + 9[/tex]

Option D is correct.

Perimeter=Sum of three sides

Perimeter:-

[tex]\\ \rm\Rrightarrow 0.3x+24+5x+0.2x-15[/tex]

[tex]\\ \rm\Rrightarrow 5.5x+24-15[/tex]

[tex]\\ \rm\Rrightarrow 5.5x+9[/tex]

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