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7 August, 14:40

A thermometer comes with a guarantee that the state temperature differs from the actual temperature by no more than 1.5 degrees Fahrenheit write and solve an equation to find the minimum and maximum actual temperatures when the temperature states that the temperature is 87.4 degrees Fahrenheit

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  1. 7 August, 16:16
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    |x-87.4| < = 3

    ---

    -3< = x-87.4 < = 3

    Add 87.4 along the lines to get:

    84.4 < = x < = 90.4

    min = 84.4

    max = 90.4
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