document.write( "Question 1062666: When bottles of water cost $.80 per bottle at softball games, 200 bottles were sold. When the price was raised to $1.00 per bottle, only 150 bottles were sold. Determine the number of bottles of water sold if the price was $.90 per bottle.\r
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Algebra.Com's Answer #677625 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! There is an inverse linear relation ( I assume ) between \n" ); document.write( "price of bottles and number of bottles sold \n" ); document.write( "You are given 2 points on the line: \n" ); document.write( "( 200, .8 ) and \n" ); document.write( "( 150, 1 ) \n" ); document.write( "---------------------- \n" ); document.write( "Let \n" ); document.write( "Let \n" ); document.write( "------------------------------------------------- \n" ); document.write( "Use the point-slope formula \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Multiply both sides by \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Multiply both sides by \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "----------------------------- \n" ); document.write( "If \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "175 bottles will be sold at $.90/bottle \n" ); document.write( "----------------------------------- \n" ); document.write( "check: \n" ); document.write( "Does the equation go through ( 200, .8 ) ? \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "OK \n" ); document.write( "Does the equation go through ( 150,1 ) ? \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "OK\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |