Problema Solution
A baker is making fudge and his receipe calls for thirty 75% cocoa chocolate squares. He looks in his cupboard to discover he only has 60% cocoa and 85% cocoa. How many of each should he use to make his fudge?
Answer provided by our tutors
let
x = number of 60% cocoa squares
y = number of 85% cocoa squares
x + y = 30
0.60x+ 0.85y = 0.75*30
by solving the above system of equations we find
x = 12 squares
y = 18 squares
click here to see the step by step solution of the system of equations
12 60% cocoa squares and 18 85% cocoa squares should be used for the fudge.