document.write( "Question 232912: John is twice as old as his friend Peter. Peter is 5 years older than Alice. In 5 years, John will be three times as old as Alice. How old is Peter now? \n" ); document.write( "
Algebra.Com's Answer #283946 by dmf30633(3)![]() ![]() ![]() You can put this solution on YOUR website! John is twice as old as his friend peter, J=2P \n" ); document.write( "Peter is 5 years older than Alice, P=A+5 \n" ); document.write( "In 5 years John will be three times as old as Alice, J+5=3A \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "J=2P \n" ); document.write( "P=A+5 \n" ); document.write( "J+5=3A \n" ); document.write( "------------- \n" ); document.write( "J=2(A+5) \n" ); document.write( "J=2A+10 \n" ); document.write( "------------- \n" ); document.write( "J+5=3A \n" ); document.write( "2A+10+5=3A \n" ); document.write( "10+5=A \n" ); document.write( "15=A \n" ); document.write( "------------- \n" ); document.write( "P=A+5 \n" ); document.write( "P=15+5 \n" ); document.write( "P=20\r \n" ); document.write( "\n" ); document.write( "So peter is 20, lets check our work. If peter is 20 then John must be 40. In 5 years John will be 45, which is 3 times as old as Alice who is 15. \n" ); document.write( " |