document.write( "Question 1007767: Q3. A flat rectangular piece of aluminum has a perimeter of 62 inches. The length is 15 inches longer than the width. Find the width.\r
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document.write( " a. 31 inches
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document.write( " b. 38 inches
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document.write( " c. 8 inches
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document.write( " d. 23 inches \n" );
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Algebra.Com's Answer #623616 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Call the length and width, L and W. Then we have \n" ); document.write( "Perimeter P = 2L + 2W = 62 and \n" ); document.write( "L = W + 15 \n" ); document.write( "Now substitute this into the first equation and get \n" ); document.write( "2(W + 15) + 2W = 62 \n" ); document.write( "2W + 30 + 2W = 62 \n" ); document.write( "4W + 30 = 62 \n" ); document.write( "4W = 32 \n" ); document.write( "W = 8 inches \n" ); document.write( "Choice C. \n" ); document.write( " |