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100 pts question
A rectangle's length is 8.1 more than 10 times its width. Its perimeter is 515.6. Write and solve a system of equations to find the dimensions of the rectangle.

Type the area of the rectangle, rounded to the nearest tenth.

Respuesta :

11qq11

Let x be the width

Lenght = 10x + 8.1

(10x + 8.1)2 + 2x = 515.6

22x = 499.4

x = 22.7

Area = l*w

= 22.7*235.1

= 5336.77

= 5340( nearest tens)

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