document.write( "Question 1004278: The perimeter of a rectangular -shaped field is 138 ft. The width is 29 ft shorter than the length. Find the length and width of the field. \r
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document.write( "Let x =the length
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document.write( "Let y = the width \r
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document.write( "Write two equations. First complete the sentence that describes the formula for the perimeter of a rectangle. \r
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document.write( "Perimeter of a rectangle equals twice the length plus twice the width \r
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document.write( "Use the above formula and the assigned variables, x and y to write an equation.
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document.write( "2x+2y=138. \r
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document.write( "Recall the condition that the width of the rectangle is 29 ft shorter than the length. Now, write an equation for the width in terms of the length\r
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document.write( "y= \n" );
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Algebra.Com's Answer #620769 by addingup(3677)![]() ![]() You can put this solution on YOUR website! The perimeter of a rectangle is: \n" ); document.write( "2L+2W= P The problem says the Width= L-29 and the Perimeter= 138: \n" ); document.write( "2L+L-29+L-29= 138 \n" ); document.write( "4L-58= 138 \n" ); document.write( "4L= 196 \n" ); document.write( "L= 196/4 \n" ); document.write( "L= 49 This is the length, and the width: \n" ); document.write( "W= 49-29= 20 \n" ); document.write( "Proof: \n" ); document.write( "2(49)+2(20)= 138 \n" ); document.write( "98+40= 138 \n" ); document.write( "138= 138 We have the correct answer \n" ); document.write( " |