3 years ago

Which on of these numbers is not like the others? 25, 16, 49, 63, 81

Mathematics

1 answer:

ohaa [14]3 years ago

5 0

63 because all the other numbers are perfect squares while 63 is not

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$\bf \qquad \qquad \textit{inverse proportional variation}
\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

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\begin{cases}
v=60\\
p=1
\end{cases}\implies 60=\cfrac{k}{1}\implies 60=k
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\boxed{v=\cfrac{60}{p}}
\\\\\\
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