SOLUTION: Sue has $80,000 to invest in a savings account, which pays 7% and a certificate of deposit which pays 8.4%. Sue would like to receive $6,300 as interest income. How much should she

Question 1080251: Sue has $80,000 to invest in a savings account, which pays 7% and a certificate of deposit which pays 8.4%. Sue would like to receive $6,300 as interest income. How much should she invest in each?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
and

2.
From 1,

Subtract from 2 to eliminate A,

Solve for B, then use either equation to solve for A.
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