80percent 80percent

04-02-2016
Mathematics

contestada

I spent 80% of my money and had $12 left. How much money did I have to start ?

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H8SH33M H8SH33M

04-02-2016

If you spent 80% that means you have 20% left, we'll use B as variable

20% x B = 12
0.20/0.20 x B = 12/0.20
B = 60

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