Question 899463
x+y=15000,
0.07*x+0.11*y=1500
x=15000-y
0.07*(15000-y)+0.11*y=1500
1050.0-0.07y+0.11*y=1500
0.04*y=450.0
y=11250.0
x=15000-y
x=3750.0 y=11250.0
check
3750.0 +11250.0=15000
0.07*x+0.11*y=1500
0.07*3750.0+0.11*11250.0=1500
262.5+1237.5=1500
1500.0=1500
ok