document.write( "Question 897206: Lindsey has fifty coins in her change purse that are either dimes or quarters. If y represents the number of quarters she has, write an algebraic expression in terms of y that describes the number of dimes.\r
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Algebra.Com's Answer #544018 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! y = number of quarters\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If x = number of dimes, and if we have 50 coins (either quarters or dimes), then\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x+y = 50\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for y to get x = 50 - y (notice how I subtracted y from both sides to isolate x)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So there are 50 - y dimes if there are y quarters. \n" ); document.write( " |