document.write( "Question 1204055: Assume that a current exchange rate ,the British pound is worth 1.65 in American dollars.you have some dollar bills and several British pound coins.there are 17 items all together,which have a value of 21.55 in American dollars.how many American dollars and how many British pound coins do you have?
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Algebra.Com's Answer #840062 by ikleyn(52786)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "Assume that a current exchange rate ,the British pound is worth 1.65 in American dollars. \n" ); document.write( "you have some dollar bills and several British pound coins. \n" ); document.write( "there are 17 items all together, which have a value of 21.55 in American dollars. \n" ); document.write( "how many American dollars and how many British pound coins do you have? \n" ); document.write( "~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "Let x be the number of British pound coins.\r\n" ); document.write( "Then the number of American dollar bills is (17-x).\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Write the value equation in American dollars\r\n" ); document.write( "\r\n" ); document.write( " 1.65x + (17-x) = 21.55 dollars.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Simplify and find x\r\n" ); document.write( "\r\n" ); document.write( " 1.65x + 17 - x = 21.55\r\n" ); document.write( "\r\n" ); document.write( " 1.65x - x = 21.55 - 17\r\n" ); document.write( "\r\n" ); document.write( " 0.65x = 4.55\r\n" ); document.write( "\r\n" ); document.write( " x = 4.55/0.65 = 7.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "ANSWER. There are 7 British pound coins and the rest, 17-7 = 10, are American one-dollar bills.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |