posted by Joe on .
A wholesaler mixed coffee beans worth $6/kg with another kind worth $8.80/kg. The 16kg mixture was worth $6.70/kg. How many kilograms of each type was used?
Let the amount of the $6 mixture used be x kg
let the amount of the $8.80 mixture be 16-x kg
6x + 8.8(16-x) = 6.7(16)
solve for x
thnx SO MUCH
you may move the decimal 1 place if you want