document.write( "Question 100326: Can someone show me how this is done. I am lost\r
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document.write( "Six pears and three apples cost $3.90. Two pears and five apples cost $3.30. How much does one pear cost?
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document.write( "Write one equation for each situation and solve the system of equations.
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document.write( "Let p = the cost of one pear
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document.write( "Let a = the cost of one apple
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document.write( "a. Write a system of equations that can be used to determine the cost of pears and apples.
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document.write( "b. Determine the cost of one pear and one apple. Use mathematics to explain how you determined your answer.
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Algebra.Com's Answer #73060 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! 6P+3A=3.90 \n" ); document.write( "2P+5A=3.30 NOW MULTIPLY THIS EQUATION BY -3 & ADD THEM \n" ); document.write( "-6P-15A=-9.90 \n" ); document.write( "6P+3A=3.90 \n" ); document.write( "---------------------------------- \n" ); document.write( "-12A=-6 \n" ); document.write( "-A=-6/-12 \n" ); document.write( "A=$.50 PRICE OF EACH APPLE \n" ); document.write( "6P+3*.5=3.90 \n" ); document.write( "6P+1.50=3.90 \n" ); document.write( "6P=3.90-1.50 \n" ); document.write( "6P=2.40 \n" ); document.write( "P=240/6 \n" ); document.write( "P=$.40 FOR EACH PEAR. \n" ); document.write( "PROOF \n" ); document.write( "2*.40+5*.50=3.30 \n" ); document.write( ".80+2.50=3.30 \n" ); document.write( "3.30=3.30 \n" ); document.write( " |