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    Calculus and word problems

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    1.see attached

    2. The amount of alcohol in the bloodstream,A, declines at a rate proportional to the amount, that is dA
    ____= -kA. If k= 0.6 for a particular
    dt
    person, how long will it take for his alcohol concentration to decrease from 0.10% to 0.05%? Give your answer to the nearest tenth of an hour.

    3.Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the x-axis.

    y-x+1, y=0, x=-1,x=5

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    https://brainmass.com/math/basic-calculus/calculus-and-word-problems-187220

    Solution Summary

    This provides an example of using calculus to find alcohol concentration and volume.

    $2.49

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