Question 1043297: 
The relationship between the temperature F,in degrees Fahrenheit,and the temperature C,in degrees Celsius, is given by the formula above. A student uses the approximate formula F=2C +30 to convert from degrees Celsius to degrees Fahrenheit. For what temperature in degrees Celsius does the student's approximate formula give the correct temperature in degrees Fahrenheit?
A) 0
B) 5
C) 10
D) 15
Found 2 solutions by stanbon, josmiceli:
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! F=(9/5)C +32}}}
The relationship between the temperature F,in degrees Fahrenheit,and the temperature C,in degrees Celsius, is given by the formula above. A student uses the approximate formula F=2C +30 to convert from degrees Celsius to degrees Fahrenheit. For what temperature in degrees Celsius does the student's approximate formula give the correct temperature in degrees Fahrenheit?
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...............Using F = (9/5)C+32.........Using F + 2C + 30
A) 0....................32...........................30
B) 5....................37...........................40
C) 10...................50...........................50-------Answer
D) 15
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Cheers,
Stan H.
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Answer by josmiceli(19441)  (Show Source):
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