document.write( "Question 52092This question is from textbook PH Alg-1
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document.write( ": I am thrown by this one. I have no total to work with and I should read it some other way. Please help.
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document.write( "This is how I started.\r
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document.write( "placing planks of equal length end to end, J found that 3 planks were one foot too short and 4 planks were two feet too long. Find the length of the planks\r
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document.write( "I did: X+3(X-1)+4(X-2)
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document.write( "where am I wrong? \n" );
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Algebra.Com's Answer #34737 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! LETS TRY A DIFFERENT APPROACH AND DO IT GRAPHICLY \r \n" ); document.write( "\n" ); document.write( "PLANK1+PLANK2+PLANK3 IS SHORT BY 1 FOOT OR -1 \n" ); document.write( "PLANK1+PLANK2+PLANK3+PLANK4 IS 2 FEET LONG OR +2 THE DISTANCE BETWEEN -1&+2=3 \n" ); document.write( "THEREFORE THE LENGTH OF THE PLANK MUST BE 1 FOOT + 2 FEET=3 FEET LONG\r \n" ); document.write( "\n" ); document.write( "SORRY FOR THE MISINFORMATION. I MUST HAVE HAD A LAPSE BECAUSE I KNEW THE ANSWER HAD TO BE 3 FEET BUT DIDN'T PAY ATTENTION TO THE ANSWER I GOT. \n" ); document.write( " |