Answers

2014-07-28T15:02:01+08:00
Let x=width
2x(5)=length
2x(5)=168; equation
10x=168 divided by 10 to get the value of x
x=16.8

try to checkĀ 
2(16.8)(5)=168
168=168; they are equal . so, its correct!
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