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A solution is to be kept between 68oF an...

A solution is to be kept between `68oF` and `77oF` . What is the range in temperature in degree Celsius (C) if the Celsius / Fahrenheit (F) conversion formula is given by `F=9/5C+32 ?`

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Let F is the temperature in Fahrenheit .
a/c to question, 68°F ≤ F ≤ 77°F
but we know, F = 9C/5 + 32 , use this here,
68≤ 9C/5 + 32 ≤ 77
...
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