document.write( "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%? \n" ); document.write( "
Algebra.Com's Answer #280467 by mananth(16949) 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 $564 in interest at the end of the year. How much was invested at 9%?\r \n" ); document.write( "\n" ); document.write( "$x ---------------- 9% \n" ); document.write( "6700-x-------------8% \n" ); document.write( ".. \n" ); document.write( "Interest earned = 564 \n" ); document.write( ".. \n" ); document.write( "9x+8(6700-x)=564*100 \n" ); document.write( "9x+53600-8x=56,400 \n" ); document.write( "x=56,400-53600 \n" ); document.write( "x=2,800 investment @ 9% \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |