Question 1119239
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"Egbert invested $2,500 at 10% interest for one year. He has an additional $6,000 to deposit. At what rate must he invest the $6,000 to end the year with a total balance of exactly $9,440?" 
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r, the needed interest rate as a percent. (yearly rate)


{{{2500*(1+10/100)+6000*(1+r/100)=9440}}}