document.write( "Question 678845: A picture measures 40 cm by 30 cm. The outside perimeter of the frame around the picture is 156. Find the width of the frame. \n" ); document.write( "
Algebra.Com's Answer #421876 by ankor@dixie-net.com(22740)\"\" \"About 
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A picture measures 40 cm by 30 cm. The outside perimeter of the frame around the picture is 156. Find the width of the frame.
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\n" ); document.write( "Let x = the width of the frame
\n" ); document.write( "The frame will add 2x to the dimensions of the picture, therefore:
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\n" ); document.write( "The perimeter
\n" ); document.write( "2(2x+40) + 2(2x+30) = 156
\n" ); document.write( "divide eq by 2
\n" ); document.write( "2x+40 + 2x+30 = 78
\n" ); document.write( "4x + 70 = 78
\n" ); document.write( "4x = 78 - 70
\n" ); document.write( "4x = 8
\n" ); document.write( "x = 2 cm is width of the frame \n" ); document.write( "
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