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A scuba diver is at an elevation of −40 feet. The diver starts moving at a rate of −16 feet per minute. Write an inequality that represents how long it will take the diver to reach an elevation deeper than −310 feet.

Respuesta :

Let time be t

[tex]\\ \sf\longmapsto 40+16t\leqslant 310[/tex]

[tex]\\ \sf\longmapsto 16t\leqslant 310-40=270[/tex]

[tex]\\ \sf\longmapsto t\leqslant \dfrac{270}{16}[/tex]

[tex]\\ \sf\longmapsto t\leqslant 17s[/tex]

  • It will take at least 17s to go 310ft deeper

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