document.write( "Question 1032030:
\n" ); document.write( "Question:\r
\n" ); document.write( "\n" ); document.write( "Jim has a total of 77 red and blue marbles. The number of blue marbles is five more than twice the number of red marbles.
\n" ); document.write( "Write a pair of linear equations to represent information. Be sure to indicate what the variables represent.
\n" ); document.write( "Explain the replacement method solving this pair of equations. Solve the equations to find the number of red marbles. Show your work.
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Algebra.Com's Answer #646731 by stanbon(75887)\"\" \"About 
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Jim has a total of 77 red and blue marbles. The number of blue marbles is five more than twice the number of red marbles.
\n" ); document.write( "Write a pair of linear equations to represent information. Be sure to indicate what the variables represent.
\n" ); document.write( "r + b = 77 marbles
\n" ); document.write( "b = 2r + 5
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\n" ); document.write( "Explain the replacement method solving this pair of equations. Solve the equations to find the number of red marbles. Show your work.
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\n" ); document.write( "Substitute for \"b\" and solve for \"r\"::
\n" ); document.write( "r + 2r+5 = 77
\n" ); document.write( "3r = 72
\n" ); document.write( "red = 24 (# of red marbles)
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\n" ); document.write( "Solve for \"b\"::
\n" ); document.write( "b = 77 - r = 77-24 = 53 (# of blue marbles)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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