Posted by college on Friday, August 22, 2014 at 9:59pm.
store mixes a Brazilian coffee worth worth $10 per kilogram and a turkish coffee worth $13 per kilogram. The mixture is to sell for $12 per kilogram. Find out how much of each should be used to make a 420kilogram mixture.
my calculations all came out super wrong

college algebra  Steve, Saturday, August 23, 2014 at 12:08am
If there are x kg of Brazilian coffee, then the rest (420x) is Turkish. So,
10x + 13(420x) = 12*420
x = 140
Note that 140 is 1/3 of 420, meaning that it drags the price down 1/3 of the way from 13 to 10, or $12.
Answer This Question
Related Questions
 Math  A store mixes Brazilian coffee worth $10 per kilogram and Turkish coffee ...
 math  A store mixes Brazilian coffee worth $11 per Kilogram, Turkish coffee ...
 Algebra  A store mixes Kenyan coffee worth $11 per kilogram and Turkish coffee ...
 algebra  A store mixes kenyan coffee worht $12 per kilogram and turkish coffee ...
 math  A store mixes Kenyan Coffee worth $11 per Kilogram and venezuelan coffee ...
 algebra  A store mixes Brazilian coffee worth $11 per kilogram and Venezuelan ...
 Math 114  a store mixes kenyan coffee worth $11 per kilogram and turkish coffee...
 algebra  a coffee shop mixed brazilian coffee worth $5 per kg with Turkish ...
 Maath  A coffee shop mixes French roast coffee worth $9 per pound with Kona ...
 Algebra  Two kinds of nuts, one cost $5.00 per kilogram another cost $5.40 per ...
More Related Questions