document.write( "Question 1037905: A college student earns $5000 by working a full-time job every summer. He invested half the money in a mutual fund and half the money in a stock that yielded four times as much interest as the mutual fund. After a year he earned $250 in interest. What are the interest rates of the mutual fund and the stock? \n" ); document.write( "
Algebra.Com's Answer #652564 by addingup(3677)![]() ![]() You can put this solution on YOUR website! Let x be the interest from his mutual fund investment. Then, 4x will be the interest from the money in stocks: \n" ); document.write( "2500x+2500(4x)= 250 \n" ); document.write( "2500x+10000x = 250 \n" ); document.write( "12500x = 250 \n" ); document.write( "x = 250/12500 = 0.02 = 2% \n" ); document.write( "And stocks: 4(2) = 8% \n" ); document.write( " |