Which number is composite? a. 79 b. 87 c. 89 d. 97

Mathematics

1 answer:

n200080 [17]3 years ago

8 0

I am pretty sure b. is right. This is because 87 is not prime

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$\bf \qquad \qquad \textit{double proportional variation}
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\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
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\begin{array}{llll}
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\qquad variation
\end{array}\\\\
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