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math

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one company charges $6.95 per shirt plus a setup fee of $43. Another company charges $8.40 per shirt plus a $58 set up fee. for what number of shirts would the total be the same?

  • math -

    43 + 6.95n = 58 + 8.40n

    Solve for n.

  • math -

    subtract 43 from both sides
    9.65n=58-43+8.40n
    9.65n=15+8.40n
    subtract 8.40n from both sides
    9.65n-8.40n=15
    1.25n=15
    divide it by 1.25
    n=12
    go back to the equation and plug in
    12
    9.65(12)+43=8.40(12)+58
    158.8=158.8
    There are infinity many solutions to this problem

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