document.write( "Question 983407: Hi
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document.write( "there were pears and apples in a box.if 4 pears were taken out there woud be an equal number of pears and apples in the box.if 7 pears were taken out there would be 4/5 as many pears as apples in the box.\r
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document.write( "how many apples were there at first
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document.write( "how many pears were there at first\r
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document.write( "thank you \n" );
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Algebra.Com's Answer #604191 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let there be x pears and y apples in a box.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if 4 pears were taken out there woud be an equal number of pears and apples in the box. \n" ); document.write( "x-4 = y \n" ); document.write( "x-y =4...............(1)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if 7 pears were taken out there would be 4/5 as many pears as apples in the box. \n" ); document.write( "x-7 = 4/5 (y)\r \n" ); document.write( "\n" ); document.write( "5(x-7) = 4y \n" ); document.write( "5x-35 =4y \n" ); document.write( "5x-4y =35..............(2)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x-y =4...............(1) \n" ); document.write( "5x-4y =35..............(2)\r \n" ); document.write( "\n" ); document.write( "multiply (1) by -4 we get \n" ); document.write( "-4x+4y=-16 \n" ); document.write( "add to (2)\r \n" ); document.write( "\n" ); document.write( "x=19 Number of pears\r \n" ); document.write( "\n" ); document.write( "x-y=4\r \n" ); document.write( "\n" ); document.write( "19-y=4 \n" ); document.write( "y=15 Number of apples\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |