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How much of a 50% Alcohol solution should we mix with 10 gallons of 35% solution to get 40% solution

 Feb 24, 2020
 #1
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Amouunt of 50% solution +  amount of 35% solution  =   total amount at  40%

 

So wwe have

 

.50x  + .35 (10)  =  .40 (x + 10)    simplify

 

.50x + 3.5   =  .40x  + 4       subtract  ,40x , 3.5  from  both sides

 

.10x =  .5     divide  both  sides  by  .10

 

x  = 5   gallons of the 50%  solution

 

 

cool cool cool

 Feb 24, 2020

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