tamarried
tamarried
28-01-2016
Mathematics
contestada
28% of what number is 840?
Respuesta :
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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