Mathematics, 05.06.2020 11:58 kylebenson

A substance’s decay function is represented by the equation y=10(0.87)x, where x is in hours. How long will it take until only 2.5 units of the substance is left? Justify your reasoning. Answer in complete sentences.

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A substance’s decay function is represented by the equation y=10(0.87)x, where x is in hours. How lo...