document.write( "Question 117735: Please help with this problem\r
\n" ); document.write( "\n" ); document.write( "A rectangular picture window is 5 ft by 8 ft. Polly wants to put a trim molding around the window. How many feet of molding should she buy?\r
\n" ); document.write( "\n" ); document.write( "Thank you so much
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Algebra.Com's Answer #85708 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "A \"rectangular\" picture window is \"5+ft\" by \"8+ft\". \r
\n" ); document.write( "\n" ); document.write( "If Polly wants to put a trim molding \"around\" the window, you need to calculate a perimeter \"P\" of that \"rectangular\" picture window in order to find out how many feet of molding should she buy.\r
\n" ); document.write( "\n" ); document.write( "let the lenght of window be \"a=8ft\", and the width be \"b=5ft\"\r
\n" ); document.write( "\n" ); document.write( "then:\r
\n" ); document.write( "\n" ); document.write( "\"P+=+2a+%2B+2b\"\r
\n" ); document.write( "\n" ); document.write( "\"P+=+2+%28a%2Bb%29\"....substitute \"a\" and \"b\"\r
\n" ); document.write( "\n" ); document.write( "\"P+=+2+%288ft%2B5ft%29\"\r
\n" ); document.write( "\n" ); document.write( "\"P+=+2%2A13ft\"\r
\n" ); document.write( "\n" ); document.write( "\"P+=+26ft\"\r
\n" ); document.write( "\n" ); document.write( "so, Polly should buy \"26ft\" of molding
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