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प्रश्न
What must be the temperature m Fahrenheit so that it will be twice its value in Celsius?
संख्यात्मक
उत्तर
`F = 9/5 C + 32`
We are given that the Fahrenheit temperature should be twice the Celsius temperature: F = 2C
`2C = 9/5 C + 32`
To eliminate the fraction, multiply both sides of the equation by 5:
`5xx2C = 5 xx (9/5C + 32)`
10C = 9C + 160
10C − 9C = 160
C = 160
Now that we know C = 160, substitute this value into the equation F = 2C:
F = 2 × 160
= 320°F
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