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    Coin Combination Probability

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    Suppose you have 50 American coins totaling exactly $1. This includes at least one quarter, and may contain nickels, dimes, and/or pennies.
    If you drop a coin at random, what is the probability that it is a penny?

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    Solution Summary

    Step-by-step solution for solving an under-determined system of equations, using a table of values and then determining the probability.