document.write( "Question 984226: Sisters
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document.write( "Fran is 8 years older than Maria. Four years ago Fran was five times as old as Maria. How old are the girls?\r
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Algebra.Com's Answer #604994 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "F=Fran's age; M=Maria's age \n" ); document.write( "F=M+8 Use this to substitute for F. \n" ); document.write( ". \n" ); document.write( "F-4=5(M-4) Substitute for F \n" ); document.write( "(M+8)-4=5(M-4) \n" ); document.write( "M+4=5M-20 \n" ); document.write( "24=4M \n" ); document.write( "6=M ANSWER 1: Maria is 6 years old. \n" ); document.write( ". \n" ); document.write( "F=M+8=6+8=14 ANSWER 2: Fran is 14 years old. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "F-4=5(M-4) \n" ); document.write( "14-4=5(6-4) \n" ); document.write( "10=5(2) \n" ); document.write( "10=10 \n" ); document.write( " |