Sara can type 90 words in 4 minutes. About how many words would you expect her to type in 10 minutes at this rate?

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asked Oct 26, 2024 147k views

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Sara can type 90 words in

4 minutes. About how many words
would you expect her to type in
10 minutes at this rate?

Mathematics
college

Jesse Hill asked

by Jesse Hill

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1 Answer

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$\begin{array}{ccll} words&minutes\\ \cline{1-2} 90 & 4\\ x& 10 \end{array} \implies \cfrac{90}{x}~~=~~\cfrac{4}{10} \\\\\\ \cfrac{ 90 }{ x } ~~=~~ \cfrac{ 2 }{ 5 }\implies 450=2x\implies \cfrac{450}{2}=x\implies 225=x$

Andreas Johansson answered Nov 1, 2024

by Andreas Johansson

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