document.write( "Question 748945: i) Find the perimeter of a rectangle with a length of 5x and width of x ( write an algebraic expression )\r
\n" ); document.write( "\n" ); document.write( "ii) if the perimeter was 30m, what was the value of x?
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Algebra.Com's Answer #455753 by Cromlix(4381)\"\" \"About 
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i)Perimeter = 2 x length + 2 x width
\n" ); document.write( " = 2 x (5x) + 2 x (x)
\n" ); document.write( " = 10x + 2x\r
\n" ); document.write( "\n" ); document.write( "ii) 10x + 2x = 30 m
\n" ); document.write( " 12x = 30m
\n" ); document.write( " x = 2.5 m
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