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19-05-2015
Mathematics

Answered

At sunrise, the temperature was –4.5°C. During the day, the temperature rose 9.7°C and then fell 4.8°C.

What was the final temperature?

A.
–19°C

B.
0.4°C

C.
10°C

D.
9.4°C
I think it's 9.4, but I'm not sure. I used to be pretty good at these questions, but I'm kinda rusty, so please give an easy to understand explanation!

Answer :

19-05-2015

-4.5 rose 9.7 then fell 4.8

-4.5 + 9.7 = 5.2

5.2 - 4.8 = 0.4

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