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Minchanka [31]
3 years ago
10

The area of a rectangle is 42m squared and the length of the rectangle is 5m more then twice the width. Find the dimensions of t

he rectangle
Length= __m
Width=____m
Mathematics
1 answer:
lozanna [386]3 years ago
8 0

Answer:

A=lw

w=width

2w+5=length

42=w(2w+5)

42=2w2+5w

2w2+5w-42=0

use the quadratic equation

(-5+√25+336)/4

(-5+√361)/4

(-5+19)/4

14/4=3.5

w=3.5 m

2w+5=12 m

3.5 by 12 rectangle

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