## batman19991 one year ago What is the change in temperature from -45°F to - 71°F? -116°F 116°F -26°F 26°F

1. misssunshinexxoxo

Do you have a calculator?

2. batman19991

at school

3. misssunshinexxoxo

What is $-45 - 71?$

4. misssunshinexxoxo

-116 F :)

5. batman19991

ok how did you know how to subtract

6. misssunshinexxoxo

When you see this problem just simply subtract

7. misssunshinexxoxo

-45 - 71 key term "change" means subtract

8. misssunshinexxoxo

is that 71 a negative?

9. misssunshinexxoxo

10. misssunshinexxoxo

$-46 - -71 = 26 F$

11. batman19991

umm ok i think

12. misssunshinexxoxo

Change means subtract

13. misssunshinexxoxo

14. batman19991

oh ok

15. misssunshinexxoxo

Don't let temperature intimidate the question; if you see change means subtract, increase means add and decrease is subtract

16. Astrophysics

Are you sure it's 26F? :) @misssunshinexxoxo

17. batman19991

what

18. Astrophysics

I'm asking are you certain it's 26 F?

19. Astrophysics

Temperature is not exactly like normal math...if I said it was -50F but it was -12F earlier, what is temperature difference?

20. Astrophysics

Well it's normal math but you get what i mean Xd

21. batman19991

im not the one who said it idk thats why i asked the question

22. UnkleRhaukus

(-71°F) - (-45°F) = (-71+45) °F = should be negative as it is getting colder

23. Astrophysics

Haha, well since it's asking what is the change in temperature from -45°F to - 71°F, notice that it's going from -41 F -> -71 F so you have to subtract -71 F from - 45 F and that will be the difference between the temperature.

24. Astrophysics

Or yes, exactly what UnkleRhaukus said

25. batman19991

okay guys the war is over

26. Astrophysics

Lol, there's no war, I'm just trying to get you to understand the concept

27. misssunshinexxoxo

"change" symbolizes subtraction

28. UnkleRhaukus

change in $$x$$ is $x_\text{final} - x_\text{initial}$ if you get the order wrong, you'll get the answer wrong

29. Astrophysics

Yes! Change in temperature therefore is represented as such $\Delta T = T_f - T_i$