## dmezzullo Group Title [2.08] The formula for degrees Celsius is: C = 9 over 5 (F − 32), where F stands for degrees Fahrenheit. Part 1: Solve the formula for F. Show all steps. Part 2: Determine how many degrees Fahrenheit 4 degrees Celsius is. one year ago one year ago

1. dmezzullo Group Title

show how to do every step

2. dmezzullo Group Title

@AriPotta

3. dmezzullo Group Title

@swissgirl

4. AriPotta Group Title

i thought it was 5/9?

5. dmezzullo Group Title

it is

6. AriPotta Group Title

but you wrote 9/5. i'm just making sure

7. AriPotta Group Title

idk :/ it's probably 9/5, nvm

8. swissgirl Group Title

can u draw the equation cuz I so dont follow it

9. AriPotta Group Title

|dw:1352686957842:dw|

10. swissgirl Group Title

ok gotcha

11. dmezzullo Group Title

|dw:1352687047882:dw|

12. swissgirl Group Title

Now our first step would be to isolate our F

13. AriPotta Group Title

it's 5/9 now? ugh

14. swissgirl Group Title

So first we divide the 5/9 $$\large C*\frac{9}{5} = \frac{5}{9}*\frac{9}{5} (F-32)$$ $$\large \frac{9}{5}C=F-32$$ Then we add 32 to both sides: $$\large \frac{9}{5}C+32=F-32+32$$ $$\large \frac{9}{5}C+32=F$$ And there you go there is your formula for F

15. swissgirl Group Title

ohhh whoops I meant multiply instead of divide

16. dmezzullo Group Title

this didnt come from google right?

17. swissgirl Group Title

Ok that first line should say: So first we multiply both sides by 9/5

18. swissgirl Group Title

hahaha Noooooooooo I just did it this second. I taught grade 11 HS math last year lol

19. swissgirl Group Title

All I did was isolate the F. Its a basic tool which is needed quite often in algebra

20. swissgirl Group Title

The way i would suggest you learn how to isolate is by starting off with simpler functions such as y=3x+4 And try to isloate the x.

21. swissgirl Group Title

Now Part B all its asking for you is to find out what 4 degrees Celsius is in Faranheight. Now which equation would you use?

22. dmezzullo Group Title

idk

23. swissgirl Group Title

Ok the equation we just figured out

24. swissgirl Group Title

We would like to know what F=Fahrenheit equals when c=4 $$\Large F=\frac{9}{5}C+32$$ So we plug in C=4 $$\Large F=\frac{9}{5}(4)+32$$ Ok now you solve the rest

25. dmezzullo Group Title

No

26. swissgirl Group Title

$$\large F=\frac{36}{5} +32 =39.2$$

27. dmezzullo Group Title

tyvm