TJBEAST47 TJBEAST47

14-04-2021
Mathematics

contestada

if you start at 89 degrees and it decreases 5% each hour what would it be at in 3 hours

Respuesta :

altavistard altavistard

14-04-2021

Answer:

A = 76.3 degrees after 3 hours

Step-by-step explanation:

An exponential function is needed here:

A = P(1 - 0.05)^3, where this (1 - 0.95) reflects a DECREASE of 5%/hour.

Then: A = (89 degrees)(0.95)^3, or

A = 76.3 degrees after 3 hours

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