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Question
Convert – 40°F to the Celsius scale.
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Solution
F = - 40° F
Substitute the value of F in below equation
`"C"/5 = ("F"-32)/9`
`"C"/5 = (-40 - 32)/9`
`"C"/5 = (-72)/9`
`"C"/5 = -8`
C = -8 × 5
C = -40
Solution = -40°C
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