# SOLUTION: A college student earned \$6700 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 9% and the rest at 8%. If the student r

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 Question 395150: A college student earned \$6700 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 9% and the rest at 8%. If the student received a total of \$564 in interest at the end of the year. How much was invested at 9%?Answer by mananth(13127)   (Show Source): You can put this solution on YOUR website!A college student earned \$6700 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 9% and the rest at 8%. If the student received a total of \$564 in interest at the end of the year. How much was invested at 9%? \$x ---------------- 9% 6700-x-------------8% .. Interest earned = 564 .. 9x+8(6700-x)=564*100 9x+53600-8x=56,400 x=56,400-53600 x=2,800 investment @ 9% ... m.ananth@hotmail.ca