Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (batman19991):

What is the change in temperature from -45°F to - 71°F? -116°F 116°F -26°F 26°F

OpenStudy (misssunshinexxoxo):

Do you have a calculator?

OpenStudy (batman19991):

at school

OpenStudy (misssunshinexxoxo):

What is \[-45 - 71? \]

OpenStudy (misssunshinexxoxo):

-116 F :)

OpenStudy (batman19991):

ok how did you know how to subtract

OpenStudy (misssunshinexxoxo):

When you see this problem just simply subtract

OpenStudy (misssunshinexxoxo):

-45 - 71 key term "change" means subtract

OpenStudy (misssunshinexxoxo):

is that 71 a negative?

OpenStudy (misssunshinexxoxo):

Answer is 26

OpenStudy (misssunshinexxoxo):

\[-46 - -71 = 26 F\]

OpenStudy (batman19991):

umm ok i think

OpenStudy (misssunshinexxoxo):

Change means subtract

OpenStudy (misssunshinexxoxo):

If that 71 is negative your answer is 26

OpenStudy (batman19991):

oh ok

OpenStudy (misssunshinexxoxo):

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

OpenStudy (astrophysics):

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

OpenStudy (batman19991):

what

OpenStudy (astrophysics):

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

OpenStudy (astrophysics):

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

OpenStudy (astrophysics):

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

OpenStudy (batman19991):

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

OpenStudy (unklerhaukus):

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

OpenStudy (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.

OpenStudy (astrophysics):

Or yes, exactly what UnkleRhaukus said

OpenStudy (batman19991):

okay guys the war is over

OpenStudy (astrophysics):

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

OpenStudy (misssunshinexxoxo):

"change" symbolizes subtraction

OpenStudy (unklerhaukus):

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

OpenStudy (astrophysics):

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

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!