A nickel is 0.185 cm thick. How thick is a roll of nickels worth $2?
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1N i= 5ct
The thickness of a roll of nickels worth $2 is
\(\frac{2\$}{1Ni}\cdot\frac{Ni}{5ct}\cdot \frac{100ct}{\$}\cdot 0.185cm=\color{blue}7.4cm\)
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