Question 977810
x=8% return
10000-x=10% return

.08x+ .1 (10,000-x)=940
.08x + 1000-.1x=940  ;; collect x terms and subtract 1000 from both sides
-0.02x=-60 ;; divide both sides by -0.02
x=3000

3000 at 8%=$240
7000 at 10%=$700
$940 total