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The formula R = -0.075t+3.85 can be used to predict the world record in the 1500 meter run, t years after 1930. Determine an inequality that world record will be less than 2.8 minutes.
Solve for t.

  • math -

    If we ignore the total silliness of the question

    -0.075t+3.85 < 2.8

    t > 14

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