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16 January, 08:37

The total cost C (in dollars) to participate in a triathlon series is given by the literal equation C = 90x + 35, where x is the number of triathlons in which you participate. a. Solve the equation for x b. In how many triathlons do you participate if you spend a total of $305?

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  1. 16 January, 08:46
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    A.

    C=90x+35

    C-35=90x

    x = (C-35) / 90

    b.

    305=90x+35

    270=90x

    x=3

    3 triathlons
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