The perimeter of the triangle below is 73 units. Find the value of x.

Mathematics

2 answers:

Evgesh-ka [11]1 year ago

6 0

Answer:

3x+4x-1+x+2=73

8x+1=73

8x=73-1

8x=72

8x/8=72/8

x=9

In-s [12.5K]1 year ago

3 0

<h2><u>Solution</u>:</h2>

Perimeter (p) of a triangle:

$p = a + b + c$

P = 73 units

To find the value of x

$73 = 3x + 4x - 1 + x + 2$

→ $73 = 8x + 1 \\ 73 - 1 = 8x$

→ $8x = 72$

→ $\frac{8x}{8} = \frac{72}{8}$

$x = 9$

You might be interested in

A rectangle has an area of 45x2 − 42x − 48 and a width of 5x − 8. what is the length of the rectangle? to find the length of the

kondaur [170]

If the area and width of the rectangle are 45x² − 42x − 48 and (5x − 8) then the length of the rectangle will be (3x + 2).

<h3>What is a rectangle?</h3>

It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a rectangle, opposite sides are parallel and equal and each angle is 90 degrees. And its diagonals are also equal and intersect at the mid-point.

A rectangle has an area of 45x² − 42x − 48 and a width of 5x − 8.

Then the length of the rectangle will be

area = length × width

Then we have

Area = 45x² − 42x − 48

Then the factor of the polynomial will be

Area = (5x − 8)(3x + 2)

Then the length of the rectangle will be (3x + 2).

More about the rectangle link is given below.

brainly.com/question/10046743

4 0

2 years ago