Question 1044420
You invested ​$p in two accounts paying x% and y% annual​ interest, respectively.
If the total interest earned for the year was $z, how much was invested at each​ rate? 


s and t, the two quantities invested
{{{s+t=p}}}


Account for the amount of interest earned:
{{{(xs+yt)/100=p}}}
{{{xs+yt=100p}}}


Solve this system for s and t:
{{{system(s+t=p,xs+yt=100p)}}}