SOLUTION: Jerry and Lucy Keefe have $30,000 invested in stocks paying 5%. How much additional money should they invest in certificates of deposit paying 2% so that the total return on the tw

Algebra ->  Finance -> SOLUTION: Jerry and Lucy Keefe have $30,000 invested in stocks paying 5%. How much additional money should they invest in certificates of deposit paying 2% so that the total return on the tw      Log On


   



Question 176678: Jerry and Lucy Keefe have $30,000 invested in stocks paying 5%. How much additional money should they invest in certificates of deposit paying 2% so that the total return on the two investments is 3%?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = the amount they should invest in cd's
Return from stocks @ 5%
.05%2A30000+=+1500
Return from cd's @ 2%
.02x
Total return needs to be 3% of 30000+%2B+x
1500+%2B+.02x+=+.03%2A%2830000+%2B+x%29
1500+%2B+.02x+=+900+%2B+.03x
.01x+=+600
x+=+60000
They should invest $60,000 in cd's @ 2%