Question 901400
x+y=16000,
0.17*x+0.07*y=1500
x=16000-y
0.17*(16000-y)+0.07*y=1500
2720-0.17y+0.07*y=1500
-0.1*y=-1220
y=12200 at 7%
x=16000-y
x=3800 at 17%
check
0.17*3800+0.07*12200=1500
646+854=1500
1500=1500
ok