Can you help me do number 4

Mathematics

1 answer:

Rina8888 [55]4 years ago

3 0

4. There are 9 digits for the ten millions place and there are 1 for the ten thousands so it should be: 9:1

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$\bf \begin{array}{cccccclllll}
\textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\
\textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\
y&=&{{ k}}&\cdot&x
\\
&& y={{k }}x
\end{array}\\\\
-------------------------------\\\\$

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\begin{cases}
y=42\\
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\\\\\\
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