Problema Solution
a store mixes Brazilian coffee worth $10 per kilogram and Venezuelan coffee worth $13 per kilogram. The mixture is to sell for $12 per kilogram. Find how much of each should be used to make a 180-kilogram mixture.
Answer provided by our tutors
let
b = kg of Brazilian coffee
v = kg of Venezuelan coffee
we meed to make a 180 kilogram mixture:
b + v = 180
the mixture is to sell for $12 per kilogram:
10b + 13v = 12*180
by solving the system of equations:
b + v = 180
10b + 13v = 12*180
we find:
b = 60 kg
v = 120 kg
click here to see the step by step solution of the system of equations:
60 kg of Brazilian coffee should be mixed with 120 kg of Venezuelan coffee.