document.write( "Question 452137: An Algebra I test contains 40 questions. Some of the questions are worth 4 points each, and some are worth 2 points each. The total test is worth 100 points. Let f represent the number of questions worth 4 points and t, the number of questions worth 2 points.\r
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document.write( "Hi,
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document.write( "40 questions
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document.write( "Some of the questions are worth 4 points each, and some are worth 2 points each
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document.write( "The total test is worth 100 points.
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document.write( " Let f represent the number of questions worth 4 points 
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document.write( "and t, the number of questions worth 2 points.
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document.write( "Which equation represents the total points possible for the test?
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document.write( "  4f + 2t = 100
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document.write( "For ex:
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document.write( "Let x and (40-x) represent f and t respectively:
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document.write( " 4x + 2(40-x) = 100
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document.write( "     2x = 20
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document.write( "      x = 10, the number of 4pt questions.  There are 30 2-pt questions (40-20)
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document.write( "4*10 + 2*30 = 100 pts \n" );
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