document.write( "Question 763406: Alice and Bob each have a certain amount of money. If Alice receives dollars from Bob, then she will have 3 times as much money as Bob. If, on the other hand, she gives dollars to Bob, then she will have 2 times as much money as Bob. If neither gives the other any money, what is the ratio of the amount of money Alice has to the amount Bob has? \n" ); document.write( "
Algebra.Com's Answer #464856 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Alice and Bob each have a certain amount of money. \n" ); document.write( " If Alice receives dollars from Bob, then she will have 3 times \n" ); document.write( " as much money as Bob. \n" ); document.write( "If, on the other hand, she gives dollars to Bob, then she will have 2 \n" ); document.write( " times as much money as Bob. \n" ); document.write( " If neither gives the other any money, what is the ratio of the amount \n" ); document.write( " of money Alice has to the amount Bob has? \n" ); document.write( ": \n" ); document.write( "Let A = Alice's original amt of money \n" ); document.write( "Let B = Bob's original amt of money \n" ); document.write( "Let d = the dollars they are referring to \n" ); document.write( ": \n" ); document.write( "Write an equation for each statement, simplify: \n" ); document.write( ": \n" ); document.write( "\"If Alice receives dollars from Bob, then she will have 3 times as much money as Bob.\" \n" ); document.write( "A + d = 3(B-d) \n" ); document.write( "A + d = 3B - 3d \n" ); document.write( "A = 3B - 3d - d \n" ); document.write( "A = 3B - 4d \n" ); document.write( ": \n" ); document.write( "\"she gives dollars to Bob, then she will have 2 times as much money \n" ); document.write( " as Bob.\" \n" ); document.write( "A - d = 2(b+d) \n" ); document.write( "A - d = 2B + 2d \n" ); document.write( "A = 2B + 2d + d \n" ); document.write( "A = 2B + 3d \n" ); document.write( "A = A; therefore \n" ); document.write( "3B - 4d = 2B + 3d \n" ); document.write( "3B - 2B = 3d + 4d \n" ); document.write( "B = 7d \n" ); document.write( ": \n" ); document.write( "Find A in terms of d also, \n" ); document.write( "A = 2B + 3d \n" ); document.write( "Replace B with 7d \n" ); document.write( "A = 2(7d) + 3d \n" ); document.write( "A = 17d \n" ); document.write( "\"neither gives the other any money, what is the ratio of the amount \n" ); document.write( " of money Alice has to the amount Bob has?\" \n" ); document.write( "Find \n" ); document.write( " \n" ); document.write( "Cancel d \n" ); document.write( "A:B ratio: 17:7 \n" ); document.write( " \n" ); document.write( " |