Question 260957
.08x+.065(9,000-x)=678.87
.08x+585-.065x=678.87
15x=678.87-585
.015x=93.87
x=903.87/.015
x=$6,258 amount invested @ 8%.
Proof:
.08*6,258+.065(9,000-6,258)=678.87
500.64+.065*2,742=678.87
500.64+178.23=678.87
678.87=678.87