kimy084
kimy084
20-08-2014
Mathematics
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80 is 40% of what number?
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luana
luana
20-08-2014
[tex]x-number\\\\40\%x=80\\\\40\%=\frac{40}{100}=0,4\\\\0,4x=80\ \ |:0,4\\\\x=\frac{80}{0,4}=200\\\\ 80\ is\ 40\% \ of\ 200.[/tex]
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