leilaneedshelp5993 leilaneedshelp5993
  • 07-07-2018
  • Mathematics
contestada

How much water must be added to 10 gallons of solution that is 20% alcohol to dilute it to a solution that is only 5% alcohol?

Respuesta :

hbanna076 hbanna076
  • 07-07-2018
10 of 20%=2 gallons
if 5% = 2 gallons , then 100% = 100x2/5=40
so 40-10 =30 gallons water is needed
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