document.write( "Question 69172: six pears and three apples cost $3.90. two pears and five apples cost $3.30. how much does one pear cost? write one equation for each situation and solve the system of equations.\r
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document.write( "let p = the cost of one pear
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document.write( "let a = the cost of one apple\r
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document.write( "a. write a system of equations that can be used to determine the cost of pears and apples.\r
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document.write( "b. determine the cost of one pear and one apple. \n" );
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Algebra.Com's Answer #49272 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! 6P+3A=390 \n" ); document.write( "2P+5A=330 NOW MULTIPLY THIS EQUATION BY -3 & ADD. \n" ); document.write( "---------------------------------------------------- \n" ); document.write( "-6P-15A=-990 \n" ); document.write( "6P+3A=390 \n" ); document.write( "----------------------- \n" ); document.write( "-12A=-600 \n" ); document.write( "A=-600/-12 \n" ); document.write( "A=50 APPLES. NOW SUBSTITUTE 50 FOR A & SOLVE FOR P \n" ); document.write( "6P+3*50=390 \n" ); document.write( "6P+150=390 \n" ); document.write( "6P=390-150 \n" ); document.write( "6P=240 \n" ); document.write( "P=240/6 \n" ); document.write( "P=40 NUMBER OF PEARS \n" ); document.write( "PROOF \n" ); document.write( "2*40+5*50=330 \n" ); document.write( "80+250=330 \n" ); document.write( "330=330 \n" ); document.write( " \n" ); document.write( " |