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The length of a rectangle is 3 m longer than its width. the area of the rectangle is 154m2. what is the width

The length of a rectangle is 3 m longer than its width. the area of the rectangle is 154m2. what is the width
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The length of a rectangle is 3 m longer than its width. the area of the rectangle is 154m2. what is the width

User Bilal Khan
by
7.6k points

2 Answers

5 votes
The width would be 51m
User Bekite
by
8.4k points
4 votes
lets assume the length=y and the width=x
y=x+3

A=xy
A=x(x+3)
A=x^2+3x
154=x^2+3x
0=x^2+3x-154

use the quadratic formula

x=11
x=-14 DNE

therefore the width is 11

User Grufas
by
8.3k points
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