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The floor of a shed has an area of 99 square feet. The floor is in the shape of a rectangle whose length is 7 feet less than twice the width. Find the length and the width of the floor of the shed

Respuesta :

so hmmm notice the picture below

if the width is "w", twice that is 2*w or 2w, 7 less than that will then be
2w - 7

thus   [tex]\bf \textit{area of a rectangle}\\\\ A=lw\qquad \begin{cases} l=length\\ w=width\\ -------\\ A=99\\ l=2w-7 \end{cases}\implies 99=(2w-7)w[/tex]

solve for "w", to see what the width is

what about the length?  well, l = 2w - 7
Ver imagen jdoe0001