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Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour after the time that she first checked her outdoor thermometer. By 6 a.m., the temperature had fallen 21 degrees. Which expression can you use to find how many hours earlier she had first checked the thermometer

Respuesta :

frika

Answer:

21 ÷ 1.4

Step-by-step explanation:

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour.

The temperature had fallen 21 degrees, so it passed

[tex]21:1.4=210:14=30:2=15[/tex]

hours after she had first checked the thermometer.

She had first checked the temperature at 3 p.m.

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