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Whitepunk [10]
3 years ago
11

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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Suppose you work for a large coffee distributor that has a secret coffee blend it sells to local stores. You mix the House blend
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The ratio House blend/Organic Free Trade blend is the same and must remain the same.

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So, from the proportion, we have:

\begin{gathered} 140\cdot x=168\cdot130 \\ 140x=21840 \\ \frac{140x}{140}=\frac{21840}{140} \\ x=156 \end{gathered}

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