Exercise29

A rectangular frame’s perimeter is \(7\) feet. If its length is \(2.2\) feet, suppose we want to find how long is its width. A rectangle’s perimeter formula is

\(\displaystyle{P=2(l+w)}\text{,}\)

where \(P\) stands for perimeter, \(l\) for length and \(w\) for width. We can solve this problem using the equation:

\(\displaystyle{7=2(2.2+w)}\text{.}\)

Check whether \(4.8\) is a solution for \(w\) of this equation.

?

Yes

No

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