document.write( "Question 650054: Sandro invested Php38,000 in the International Bank of the Philippines at 5% interest. How much additional money must he invest at 10% so that the annual income would be equal to 7.5% of his investment? \n" ); document.write( "
Algebra.Com's Answer #407145 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Sandro invested Php38,000 in the International Bank of the Philippines at 5% interest. How much additional money must he invest at 10% so that the annual income would be equal to 7.5% of his investment? \n" ); document.write( "** \n" ); document.write( "let x=additional money invested at 10% \n" ); document.write( ".. \n" ); document.write( "5%(38000)+10%x=7.5%(38000+x) \n" ); document.write( "1900+0.10x=2850+.075x \n" ); document.write( ".10x-.075x=2850-1900 \n" ); document.write( ".025x=950 \n" ); document.write( "x=38000 \n" ); document.write( "additional money invested at 10%=Php38,000 \n" ); document.write( " |