Question 221964
.09x+.07(12,000-x)=890
.09x+840-.07x=890
.02x=890-840
.02x=50
x=50/.02
x=2,500 amount invested @ 9%.
12,000-2,500=9,500 invested @ 7%.
Proof:
.09*2,500+.07*9,500=890
225+665=890
890=890