1. ## mixture problem

find the cost per kilo of a coffee mixture made from 8 kls of coffee that cost $90 pero kilo and 12 kls of coffee that cost$55 pero kilo.

thanks

2. ## Re: mixture problem

Originally Posted by rcs
find the cost per kilo of a coffee mixture made from 8 kls of coffee that cost $90 pero kilo and 12 kls of coffee that cost$55 pero kilo.
cost/kilo = $\frac{8 \cdot 90 + 12 \cdot 55}{8 + 12}$