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March 26, 2017

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The Hansons are considering two possible vacation destinations. A trip out west will cost $1075 in total airfare plus an average of %450 per day in expenses. A trip south will cost $1500 in total airefare plus an average of $365 per day in expenses. How many days should they stay so that a trip south is cheaper than a trip west?

  • Algebra - ,

    Ithink its this

    Let d = number of days
    then
    cost of west trip:
    450d + 1075
    cost of south trip:


    375d + 1500
    375d + 1500 < 450d + 1075
    1500 < 75d + 1075
    425 < 75d
    5.67 < d
    answer: 6 days or greater

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