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How many grams of cream with 10% fat should a barista add to 120 grams of 20 % fat to get a mixture with 18 % fat

 Feb 17, 2021
 #1
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.10x  + .20(120)  =  .18 ( x + 120)   simplify

 

.10x + 24  =  .18x  +  21.6

 

24  -  21.6  =  .18 x   - .10x

 

2.4   = .08x  

 

2.4  /  . 08   = x    = 30   grams  

 

 

cool cool cool

 Feb 17, 2021

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