The difference between the length and width of a rectangle is 7 centimeters. Find the dimensions of the rectangle if it’s perimeter is 50 centimeters.

Respuesta :

The length of rectangle is 16 cm and width is 9 cm

Step-by-step explanation:

Let l be the length of the rectangle

and

w be the width of the rectangle

Then according to given statements

[tex]2l+2w = 50\\l+w = 25\ \ \ Eqn\ 1\\l-w = 7\ \ \ Eqn\ 2[/tex]

Adding both equations

[tex]l+w+l-w = 25+7\\2l = 32[/tex]

Dividing both sides by 2

[tex]\frac{2l}{2} = \frac{32}{2}\\l = 16[/tex]

Putting l=16 in equation 1

[tex]l+w = 25\\16+w = 25\\w = 25-16\\w = 9[/tex]

Hence,

The length of rectangle is 16 cm and width is 9 cm

Keywords: Linear equations, Variables

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