jayanti wrote:the temperature in degrees Celsius (C) can be converted to temperature in degrees Fahrenheit(F)by a formula F= 9/5(C)+32. What is the temp at which F = C??
a) 20 degrees
b) (32/5) degrees
c) 0 degrees
d) -20 degrees
e) -40 degrees
We can plug in the answers, which represent the temperature in degrees Celsius.
The formula indicates that F is 32 more than almost double the value of C.
Thus, unless C is negative, the value of F will be bigger than the value of C.
Eliminate A, B and C.
Answer choice D: -20 degrees Celsius
F = (9/5)(-20) + 32
F = -4.
-4 ≠-20.
Eliminate D.
The correct answer is
E.
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