document.write( "Question 909342: norberto cads invests two-thirds of php 30,000 at 10% and the rest at a rate such that his annual income from the 10% investment is php 800 more. at what rate does he invest for the second sum ? \n" ); document.write( "
Algebra.Com's Answer #551803 by mananth(16946)![]() ![]() You can put this solution on YOUR website! norberto cads invests two-thirds of php 30,000 at 10% and the rest at a rate such that his annual income from the 10% investment is php 800 more. at what rate does he invest for the second sum ?\r \n" ); document.write( "\n" ); document.write( "norberto cads invests two-thirds of php 30,000 at 10% = 20000\r \n" ); document.write( "\n" ); document.write( "income from above = 10%of 20000= 2000\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " and the rest at a rate such that his annual income from the 10% investment is php 800 more.\r \n" ); document.write( "\n" ); document.write( "He gets 800 less than from 10% investment\r \n" ); document.write( "\n" ); document.write( "2000-800=1200\r \n" ); document.write( "\n" ); document.write( "From 10,000 he gets 1200 \n" ); document.write( "For 100 he gets 100*1200/10000 = 12%\r \n" ); document.write( "\n" ); document.write( "10,000 at 12% = 1200 \n" ); document.write( "20,000 at 10% = 2000\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |