Respuesta :

15 inches ----> 6 1/4 hours

x inches -----> 1 hour

[tex]\begin{gathered} x\times6\frac{1}{4}=15\times1 \\ \frac{25}{4}x=15 \\ \frac{25}{4}x\times\frac{4}{25}=15\times\frac{4}{25} \\ x=\frac{12}{5}=2.4 \end{gathered}[/tex]

answer: 2.4 inches per hour

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