I need help with an Exponential Growth & Decay Word Problem. This is the problem: Mr. Jacobs won $1,000,000 in the lottery.
He withdraws 10% of the money every year. How much money will he have left after 20 years? [Round your answer to the nearest dollar]
1 answer:
Remember that for decay A=P(1-r/100)^n
A=end amount
P=principal (initial) amount
R=rate
n=time (in this case, years)
For growth it is A=P(1+r/100)^n
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Add 40 from both side
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Divided 8 from both side
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