SOLUTION: Miss Baker is preparing chocolate icing for a cake. She has semi-sweet chocolate chips(25% cocoa) and baker's chocolate(65% cocoa), which she will combine to get a 16 oz. mixture

Question 390979: Miss Baker is preparing chocolate icing for a cake. She has semi-sweet chocolate chips(25% cocoa) and baker's chocolate(65% cocoa), which she will combine to get a 16 oz. mixture of 50% cocoa. How many ounces of each type of chocolate will she use?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi, 

she will combine to get a 16 oz. mixtur       

Let x and (16oz-x) represent the 65% and 25% types respecrtively

Question States***

combining to form the 50%  mixture

 .65x + .25(16oz-x) = .50*16oz

      .40x = .25/16oz

         x = .25*16oz/.40

         x = 10oz,  the amount of the 65% type.  6oz of the 25% type  (16-6)



CHECKING our Answer***

  .65*10oz + .25*6oz =  6.5oz + 1.5oz = .50*16oz = 8oz 

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