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Gelneren [198K]
3 years ago
13

A books thickness in 31 millimeters what is the thickness in centimeters

Mathematics
1 answer:
Natasha2012 [34]3 years ago
6 0
\bf \begin{array}{ccllll}
cm&mm\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
1&10\\
x&31
\end{array}\implies \cfrac{1}{x}=\cfrac{10}{31}

solve for "x"
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