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kozerog [31]
3 years ago
11

A garden is currently 4 meters wide and 7 meters long. if the area of the garden is to be doubled by increasing the width and le

ngth by the same number of meters, find the new dimensions of the garden, rounded to the nearest tenth.
Mathematics
1 answer:
erik [133]3 years ago
4 0
Let the increase be x m
new length=(7+x)m
new width=(4+x) m
the current area of the garden is:
Area=length*width
A=4*7=28 sq. meters
when the area is doubled we shall have:
28*2=56
thus the new area will be:
(x+7)(x+4)=56
x^2+11x+28=56
x^2+11x-28=0
solving for x we get:
x=2.1
thus the dimensions are:
length=7+2.1=9.1
width=4+2.1=6.1

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How are the 4s in 0.44 related
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</span>



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