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    the northern white rhinoceros population in the 1970s

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    In the 1980s, the Northern white rhinoceros population decreased by 485 from what it was in the 1970s. by the 1990s the population increased to 2 more than twice the population in the 1970s. by 2000s, the population dropped 25 rhinoceroses to about 977 northern white rhinoceroses today. What was the northern white rhinoceros population in the 1970s?

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    https://brainmass.com/math/interpolation-extrapolation-and-regression/northern-white-rhinoceros-population-1970s-425479

    Solution Preview

    Let x be the northern white rhinoceros population in the 1970s.
    Let y be the population in the 1980s.
    let z be the population in the 1990s.

    In the 1980s, the Northern white rhinoceros population decreased by 485 from what it ...

    Solution Summary

    This solution shows how to calculate the northern white rhinoceros population in the 1970s by setting up and solving the linear equations. The solution is detailed and well presented.

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