document.write( "Question 1015594: maria is five years older than Ralph. Richard is twice as old as ralph. The sum of the three ages is 65. How old is each \n" ); document.write( "
Algebra.Com's Answer #631966 by robertb(5830)![]() ![]() You can put this solution on YOUR website! Let M = age of maria, R = age of Ralph, and \n" ); document.write( "\n" ); document.write( "From the 1st sentence, we get M = R + 5. \n" ); document.write( "From the 2nd sentence, we get \n" ); document.write( "from the 3rd sentence, we get \n" ); document.write( "\n" ); document.write( "Substituting the first two equations into the 3rd equation, we get\r \n" ); document.write( "\n" ); document.write( "R + 5 + R + 2R = 65\r \n" ); document.write( "\n" ); document.write( "4R = 60. ==> R = 15, Ralph's age.\r \n" ); document.write( "\n" ); document.write( "==> M = R + 5 = 15 + 5 = 20, Maria's age. \n" ); document.write( "and \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |