3 years ago

Your friend evaluates (10 – k) = 5 for k= 5, and gets 9 for an answer. Explain your friend's error.

Mathematics

1 answer:

zavuch27 [327]3 years ago

3 0

5(568282x52782(bhsjsjns

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$\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
1192.64&100\\
372.91&p
\end{array}\implies \cfrac{1192.64}{372.91}=\cfrac{100}{p}\implies p=\cfrac{372.91\cdot 100}{1192.64}$

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