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The temperature in degrees fahrenheit can be expressed by the function f(c)=95c+32f(c)=95c+32 where c is the temperature in degrees celsius. find the temperature in degrees fahrenheit (to the nearest degree) if it is 21 °c outside.

Respuesta :

To find how many degrees Fahrenheit multiply your number in Celsius by 9/5 (or 1.8), then add 32.

F = 9/5c + 32
F = 9/5 x 21 +32
F = 37.8 + 32
F = 69.8

Rounding to the nearest whole degree:
21 Celsius = 70 Fahrenheit

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