Question 764425
Deoraj has two coffees, each of a different strength ---- this strength being PRICE.  One coffee is L dollars per pound, and the other coffee is H dollars per pound.  The person wants a M pounds of a blend which is T dollars per pound.  The question is, how many pounds, u and v are needed?  The u and v are the pounds of the L and the H coffees respectively.


ACCOUNT FOR PRICES: {{{highlight((Lu+Hv)/M=T)}}}


ACCOUNT FOR POUNDAGE:  {{{highlight(u+v=M)}}}


The two equations form a system.  Solve for u and v.