tamarried tamarried

28-01-2016
Mathematics

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28% of what number is 840?

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Аноним Аноним

28-01-2016

0.28a=840

a is the number we need to find
0.28 is the decimal form of 28% (28/100)

0.28a=840
------- ------
0.28 0.28
a=3000

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