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The life expectancy of a circulating coin is 30 years. The life expectancy of a circulating dollar bill is only 1/20 money as long. Find the life expectancy of circulating paper
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The life expectancy of a circulating coin is 30 years. The life expectancy of a circulating dollar bill is only

1/20

money

as long. Find the life expectancy of circulating paper

User Jude
by
5.1k points

1 Answer

5 votes
life expectancy of dollar bill = d
life expectancy of coin = c

d = 1/20 c

substitute value in for c (30)

d = 1/20 * 30
d = 30/20
d = 1.5

life expectancy of a dollar bill = 1.5 years
User Milo Wielondek
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