document.write( "Question 125872This question is from textbook
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document.write( ": I'm having difficulty solving this problem, can you help me get started? Here goes:
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document.write( "Mary and her brother John collect foreign coins. Mary has four times the number of coins that John has. Together they have 150 foreign coins. Find how many coins Mary has. \n" );
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Algebra.Com's Answer #92254 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Mary has four times the number of coins that John has. Together they have 150 foreign coins. Find how many coins Mary has. \n" ); document.write( "--------------- \n" ); document.write( "Let the number of coins John has be \"x\". \n" ); document.write( "The the number of coins Mary has is \"4x\" \n" ); document.write( "------------- \n" ); document.write( "EQUATION: \n" ); document.write( "x + 4x = 150 \n" ); document.write( "5x = 150 \n" ); document.write( "x = 30 \n" ); document.write( "John has x = 30 coins \n" ); document.write( "Mary has 4x = 4*30 = 120 coins. \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |