Question 901590
x+y=15000,
0.09*x+0.1*y=1432
x=15000-y
0.09*(15000-y)+0.1*y=1432
1350-0.09y+0.1*y=1432
0.01*y=82
y=8200 at 10%
x=15000-y
x=6800 at 9%
check
0.09*6800+0.1*8200=1432
612+820=1432
1432=1432