document.write( "Question 1199590: Hi
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document.write( "Box A contains $1 coins box B contains 50 cent coins and box C contains 20cent coins. A has 5 times as many coins as C. B has 12 fewer than A. C has half the number in B. How much money is in box A. \r
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Algebra.Com's Answer #833523 by math_tutor2020(3816)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "A = number of coins in box A \n" ); document.write( "B = number of coins in box B \n" ); document.write( "C = number of coins in box C\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Stated facts: \n" ); document.write( "
\n" ); document.write( "A = 5C \n" ); document.write( "A = 5*0.5B \n" ); document.write( "A = 2.5B\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now involve fact 2 so we can solve for B. \n" ); document.write( "B = A-12 \n" ); document.write( "B = 2.5B-12 \n" ); document.write( "B-2.5B = -12 \n" ); document.write( "-1.5B = -12 \n" ); document.write( "B = -12/(-1.5) \n" ); document.write( "B = 8 \n" ); document.write( "There are 8 coins worth 50 cents each in box B.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Then, \n" ); document.write( "A = 2.5B \n" ); document.write( "A = 2.5*8 \n" ); document.write( "A = 20 \n" ); document.write( "There are 20 coins worth $1 each from box A. \n" ); document.write( "Ultimately we have 20*1 = 20 dollars in box A.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Answer: $20 \n" ); document.write( " \n" ); document.write( " |