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Nadusha1986 [10]
3 years ago
9

When 80% of a number is added to the number, the result is 216. What is the number?

Mathematics
1 answer:
azamat3 years ago
8 0
80%x + x = 216
0.8x + x = 216
1.8x = 216
x = 216/1.8
x =  120

hope this help
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3 years ago
The length of a rectangle is 5 more than twice the width. the perimeter is 130. what is the area?
vekshin1
<span>L the length     W the width 

The length of a rectangle is 5 more than twice the width</span>
L = 5+ 2W

<span>the perimeter is equal the sum of sides =130
</span>
L+L+W+W =130

by subtitution we replace L by <span>L = 5+ 2W

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</span>
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