Huracan
Huracan
25-02-2016
Mathematics
contestada
after increasing by 30% it became $520?
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apologiabiology
apologiabiology
25-02-2016
so from 100% you increased it by 30% to become 520
130%=540
percent means parts out of 100
130%=130/100=1.3
1.3 of whole=520
divide both sides by 1.3
whole=400
the number was 400
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cactussky
cactussky
25-02-2016
This can be expressed by the equation 520 = 1.3x
So, we divide 520 by 1.3 and get 400 :)
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