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The annual rate of decay is 13 %.
g = 18(0.5)^(x/5)
g/18 = (0.5)^(x/5)
ln(g/18) = (x/5)ln0.5 = -0.139x
The annual rate of decay = 13.9 %.
Answer:
The annual rate of decay is 13 %.
Step-by-step explanation:
g = 18(0.5)^(x/5) were going to move the 18 and divide x/5 (which cannot be divided)
g/18 = (0.5)^(x/5)
ln(g/18) = (x/5)ln0.5
-0.139x
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