Question 1068554
1.{{{A+B=17000}}}
.
.
{{{0.05A+0.03B=730}}}
Multiply both sides by 100.
2.{{{5A+3B=73000}}}
Multiply eq. 1 by 3 and subtract from eq. 2 to eliminate B,
{{{5A+3B-3A-3B=73000-51000}}}
{{{2A=22000}}}
Solve for A.
Then use either equation to solve for B.