document.write( "Question 570089: I am having issues with this one problem in my home work. I don't know why I cant get it...We have to set it up in the 5 step and I guess I am just confused. \r
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document.write( "?. The perimeter of a rectangle is 36m. The length is 2m more than three thimes the width. Find the length and with of the rectangle. \r
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document.write( "Ok, so here is what I have done.
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document.write( "Data: I drew a rectangle with the length labeled as 3w + 2, and the width is just labeled as w. \r
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document.write( "Varaibles: P=2(3w+2)x 2w
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document.write( "Plan: P=2Lx2W
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document.write( "Equation: 36=2(3w+2)x 2w\r
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document.write( "Ok...so here is where I get stuck.
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document.write( "36=2(3w+2) x 2w
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document.write( "36=6w+4 x 2w\r
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document.write( "so I think now I subtract 4 from each side, but then I am stuck. Am I even close?\r
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Algebra.Com's Answer #367642 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! I think you have the right idea, let's do it this way \n" ); document.write( "Write an equation for each statement: \n" ); document.write( ": \n" ); document.write( "\"The perimeter of a rectangle is 36m.\" \n" ); document.write( "2L + 2W = 36 \n" ); document.write( ": \n" ); document.write( "\"The length is 2m more than three times the width.\" \n" ); document.write( "L = 3W + 2 \n" ); document.write( ": \n" ); document.write( "Replace L in the 2st equation with (3W+2); resulting in \n" ); document.write( "2(3W+2) + 2W = 36 \n" ); document.write( "6W + 4 + 2W = 36: this is essentially what you did, just combine like terms, find W \n" ); document.write( "8W = 36 - 4 \n" ); document.write( "8W = 32 \n" ); document.write( "W = 32/8 \n" ); document.write( "W = 4 m is the width \n" ); document.write( "the \n" ); document.write( "L = 3(4) + 2 \n" ); document.write( "L = 14 m is the length \n" ); document.write( "; \n" ); document.write( ": \n" ); document.write( "Check our solutions by finding the perimeter with these values \n" ); document.write( "2(14) + 2(4) = \n" ); document.write( "28 + 8 = 36\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |