The length of a rectangle is 3 centimeters more than 3 times the width. if the perimeter of the rectangle is 46 centimeters, find the dimensions of the rectangle.

Length = 13 cm

Width = 10 cm

Step-by-step explanation:

We are told that;

We are required to determine the dimensions of the rectangle;

We know that the perimeter of a rectangle is given by the formula;

P = 2(l+w)

In this case;

46 = 2 ( x + x + 3)

Thus;

4x + 6 = 46

Solving for x,

4x = 40

  x = 10

This means, the width is 10 cm, while the length is 13 cm

Therefore, the dimensions of the rectangle is length 13 cm and width 10 cm

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

good luck!

cutie~