Question 980791


Let &nbsp;<B>w</B>&nbsp; be the width of the rectangle.
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Then the length of the rectangle is &nbsp;5<B>w</B> units, according to the condition.


Therefore, the perimeter of the rectangle is 


w + 5w + w + 5w = 12w.


It is equal to &nbsp;84&nbsp;  units:


12*w = 84.


Hence, w = {{{84/12}}} = 7 units.


Thus we found that the width of the rectangle is &nbsp;7&nbsp; units.

Hence, the length of the rectangle is &nbsp;5*7&nbsp; = 35 units.


It means that the area of the rectangle is &nbsp;7*35 = 245 units.