Question 898927
A coffee merchant sells two different coffee blends. 
The Standard blend uses 4 oz of arabica and 12 oz of robusta beans per package; The Deluxe blend uses 10 oz of arabica and 6 oz of robusta beans per package. The merchant has 80 lb of arabica and 90 lb of robusta beans available.
---------------------------- 
Find a system of inequalities that describes the possible number of Standard and Deluxe packages the merchant can make. Graph the solution set.
-------------------
Arabica Inequality:: 4S + 10D <- 10*16 oz
Robusta Inequality:: 12S + 6D <= 90*16 oz
======================
Cheers,
Stan H.