# WTF? Simple problem.

1. Jan 20, 2008

### Holocene

1. The problem statement, all variables and given/known data

The relationship between degrees Farenheit and degree Celsius is given by the formula:

$$\displaystyle{C = \frac{5}{9}(F - 32)}$$

For what temperature will degrees Celsius be 20 more than degrees farenheit?

3. The attempt at a solution

Is this the equation to solve???

$$\displaystyle{\frac{5}{9}(F - 32) = F + 20}$$

Last edited: Jan 20, 2008
2. Jan 20, 2008

### Feldoh

Yes it is

3. Jan 22, 2008

### colby2152

Celsius must be 20 degrees more than Farenheit, so $$C = F + 20$$ is the correct substitution.

4. Jan 23, 2008

### Integral

Staff Emeritus
This is just wrong. at -40 the 2 scales are equal.

5. Jan 24, 2008

### HallsofIvy

Staff Emeritus
What does that have to do with the question? No one is saying that "C= F+ 20" is generally true, just that it is true when "the degrees Celcius is 20 degrees more than Farenheit". C= F+ 20 is just a restatement of that.