Joe buys 9 cds for the same price, he also buys a dvd for 20. His total bill is 119. Find the cost o

Discussion in 'Calculator Requests' started by math_celebrity, Oct 28, 2016.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    Joe buys 9 cds for the same price, he also buys a dvd for 20. His total bill is 119. Find the cost of one cd.

    Let c be the cost of one CD. Set up the equation:
    9c + 20 = 119

    Use the equation solver:
    c = 11


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