A college graduate made $28,000 in her first year working. She invested half the money in two CDs that earned 3% and 5% annual interest. After one year she earned $625 in interest. How much was invested in the 3% account?
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let x and y be the amount she invested in the 3% and 5% account respectively. We know that ___(1) and ___(2) You should be able to continue. Cheers P.S. please show your work and where you're stuck next time
Is this a system of equations in two variables?
yes, x and y. x is the amount invested in the 3% interest account, and y is the amount invested in the 5% interest account
Originally Posted by arze let x and y be the amount she invested in the 3% and 5% account respectively. We know that ___(1) and ___(2) You should be able to continue. Cheers P.S. please show your work and where you're stuck next time In place of the fractions for equation 2, can I use 0.03 for 3/100 and 0.05 for 5/100?
of course, since they mean the same thing
I can take it from here.
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