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translate to an equation F $ 0.30 folders and N $1.50 totals $12
can you determine 3 different combination of folders and notebooks that total $12

  • math -

    .30F + 1.5N = 12

    The N's cost 5 times as much as the F's.

    So, for each extra 5 F's you need 1 less N.

    F N Total (.3F + 1.5N)
    0 8 12
    5 7 12
    10 6 12
    ...
    40 0 12

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