Question 822682
Let L = 4% antifreeze
Let T = 20% antifreeze
Let H =100% antifreeze, pure
Let M = 12 Liters
u = volume of the 4% in liters
v = volume of the pure antifreeze in liters.


{{{(Lu+Hv)/M=T}}} and {{{u+v=M}}}
Solve the system for u and v.