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ad-work [718]
3 years ago
10

28 is what percent to 31

Mathematics
1 answer:
cupoosta [38]3 years ago
4 0

if we take 31 to be the 100%, what is 28 off of it in percentage?

\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 31&100\\ 28&x \end{array}\implies \cfrac{31}{28}=\cfrac{100}{x}\implies 31x=2800\implies x=\cfrac{2800}{31} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill x\approx 90.32~\hfill

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we note that point (0,0) lies inside the shaded area. Which means if we substitute (0,0), it should create an equality that is valid.

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