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Between 9 P.M. and 6:54 A.M.​, the water level in a swimming pool decreased by 11/20
. Assuming that the water level decreased at a constant​ rate, how much did the water level drop each​ hour?

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Respuesta :

Total time

  • 9:00+(12-6:54)=9:00+5:04=14:05h

Convert to only hour

  • 14+0.8=14.08h

Total decrease=11/20

Per hour decrease

[tex]\\ \sf\longmapsto \dfrac{11}{20}\div 14.08[/tex]

[tex]\\ \sf\longmapsto 0.55\div 14.08[/tex]

[tex]\\ \sf\longmapsto 0.03/h[/tex]

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