document.write( "Question 1012420: john's age and mary's age sum up to 48. 60years later,john's age was double that of mary.
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document.write( "what are thier ages? \n" );
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Algebra.Com's Answer #628349 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "J=John's age; M=Mary's age \n" ); document.write( ". \n" ); document.write( "J+M=48 \n" ); document.write( "J=48-M \n" ); document.write( ". \n" ); document.write( "J+60=2(M+60) \n" ); document.write( "48-M+60=2M+120 \n" ); document.write( "108-M=2M+120 \n" ); document.write( "-12=3M \n" ); document.write( "-4=M \n" ); document.write( "ANSWER 1: Mary is -4 years old. \n" ); document.write( ". \n" ); document.write( "J=48-M=48-(-4)=52 \n" ); document.write( "ANSWER 2: John is 52 years old. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "J+60=2(M+60) \n" ); document.write( "52+60=2(-4+60) \n" ); document.write( "112=2(56) \n" ); document.write( "112=112 \n" ); document.write( ". \n" ); document.write( "There is no reasonable answer for this problem. \n" ); document.write( "Please check your problem. \n" ); document.write( " |