Question 1170866
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My preferred approach to this problem is to convert the given information to say the ratio of length to width is 3:2.  Then<br>
let 3x = length
let 2x = width<br>
The perimeter (twice length plus twice width) is 30m:<br>
{{{2(3x)+2(2x) = 30}}}
{{{10x = 30}}}
{{{x = 3}}}<br>
ANSWERS:
length 3x = 9m
width 2x = 6m<br>