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A boat can travel 511 kilometers on 102.2 liters of gasoline. how far can it travel on 91.3 liters?
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A boat can travel 511 kilometers on 102.2 liters of gasoline. how far can it travel on 91.3 liters?

User Clarkie
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\bf \begin{array}{ccll} km s&liters\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 511&102.2\\ k&91.3 \end{array}\implies \cfrac{511}{k}=\cfrac{102.2}{91.3}\implies \cfrac{511\cdot 91.3}{102.2}=k
User Fzgregor
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