document.write( "Question 416861: Picture of a rectangle that represents a floor that is 20 x 15. Another rectangle inside that one representing an area rug. The rug and the floor are similar rectangles with perimeters in the ratio of 5 to 3. What is the area of the rug?\r
\n" ); document.write( "\n" ); document.write( "I'm thinking I'm doing proportions but not sure how to do it.\r
\n" ); document.write( "\n" ); document.write( "Thanks
\n" ); document.write( "

Algebra.Com's Answer #291957 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi
\n" ); document.write( "perimeters in the ratio of 5 to 3
\n" ); document.write( "floor that is 20 x 15: P =70
\n" ); document.write( "Let x represent the P of the rug
\n" ); document.write( " \"5%2F3+=+70%2Fx\" |Cross Multiplying to solve for x
\n" ); document.write( " 5x = 210
\n" ); document.write( " x = 42, the perimeter of the rug. (OR 21 the sum of its length and width)
\n" ); document.write( "The rug and the floor are similar rectangles
\n" ); document.write( " \"20%2F15+=+%2821-x%29%2Fx\" |Cross Multiplying to solve for x
\n" ); document.write( " 20x = 15*(21-x)
\n" ); document.write( " 35x = 15*21
\n" ); document.write( " x = 15*21/35
\n" ); document.write( " x = 9 the rug is 12 x 9. It's area is 108
\n" ); document.write( "CHECKING our Answer***
\n" ); document.write( " 20/15 = 12/9 = 4/3 \n" ); document.write( "
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