Use the exponential decay model, A = A0ekt, to solve. Round answers to one decimal place. The half-life of lead is 22 years. How long will it take for asample of this substance to decay to 80% of its original amount?

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.