document.write( "Question 851068: Six different picture packages are available for school portaits at school.
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document.write( "The cost of each is the sum of the costs of the individual pictures in the package.
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document.write( "Each picture package and its cost are given in the following table:\r
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document.write( "Picture Package Cost
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document.write( " one 8x10, four 5x7 $38.00
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document.write( "eight 3x5, ten 2x3 $70.00
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document.write( "six exchange size, eighteen photo stickers $24.00
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document.write( "two 8x10, two 5x7 $40.00
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document.write( "twelve 3x5, four 2x3 $72.00
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document.write( "nine exchange size, nine phot stickers $27.00 \r
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document.write( "Set up and solve a system of equations to find the cost of an 8x10 picture and a 5x7 picture.
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Algebra.Com's Answer #512545 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The cost of each is the sum of the costs of the individual pictures in the package. \n" ); document.write( "Each picture package and its cost are given in the following table: \r \n" ); document.write( "\n" ); document.write( "Picture Package Cost \n" ); document.write( "one 8x10, four 5x7 $38.00 \n" ); document.write( "eight 3x5, ten 2x3 $70.00 \n" ); document.write( "six exchange size, eighteen photo stickers $24.00 \n" ); document.write( "two 8x10, two 5x7 $40.00 \n" ); document.write( "twelve 3x5, four 2x3 $72.00 \n" ); document.write( "nine exchange size, nine phot stickers $27.00 \r \n" ); document.write( "\n" ); document.write( "Set up and solve a system of equations to find the cost of an 8x10 picture and a 5x7 picture. \n" ); document.write( "Equations: \n" ); document.write( "e + 4f = 38 \n" ); document.write( "2e + 2f = 40 \n" ); document.write( "------------------- \n" ); document.write( "Modify for elimination: \n" ); document.write( "e + 4f = 38 \n" ); document.write( "e + f = 20 \n" ); document.write( "------- \n" ); document.write( "Subtract and solve for \"f\": \n" ); document.write( "3f = 18 \n" ); document.write( "f + $6.00 (cost on one 5x7) \n" ); document.write( "--- \n" ); document.write( "solve for \"e\": \n" ); document.write( "e + f = 20 \n" ); document.write( "e + 6 = 20 \n" ); document.write( "e = $14.00 (cost of one 8x10) \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================= \n" ); document.write( " |