Question

The length of a television is 3 cm less than four times the width. If theperimeter of the tv is 864 cm, find its dimensions

Answer 1

`\begin{gathered} \text{The length of the telivision is L,} \\ L=4w-3 \\ \end{gathered}`

Here, W is the width of the telivision.

The perimeter of the telivison is 864 cm.

`\begin{gathered} 864=2(L+w) \\ 864=2(4w-3+w) \\ 432=5w-3 \\ 5w=435 \\ w=87 \\ \text{and, the length is} \\ L=4w-3 \\ L=4*87-3 \\ L=345 \end{gathered}`