> Math help.?

Math help.?

Posted at: 2014-12-05 
Your teacher is in fantasy land. CDs are yielding about 1%. Same with AA-rated bonds.

see my answer from TODAY

$50,000 in cd and $80,000 in AA bonds

A retired couple has $130,000 to invest to obtain annual income. They want some of it invested in safe Certificates of deposit yielding 7%. The rest they want to invest in AA bonds yielding 11% per year. How much should they invest to realize exactly $12,300 per year?