Pen350
Pen350 Pen350
  • 03-12-2017
  • Mathematics
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Please help! Correct answer will get brainliest! How many gallons of a 21% acid solution and a 28% acid solution need to be mixed to make 7 gallons of a 25% acid solution???

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springwilliams0
springwilliams0 springwilliams0
  • 03-12-2017
three 21 and four 28 
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