Question 142845
let x="amount @ 10%", so 12000-x="amount @ 5%"


"the income from her 10% investment was 6 times as great as the income from 5% investment"
__ x(10%)=6(12000-x)(5%)


multiplying by 100 to clear percentages __ 10x=360000-30x __ 40x=360000 __ x=9000