SOLUTION: The temperature recorded in a certain region at 7:00 a.m. it was -4°C, at 9:00 a.m. rose 3°C, and then at 10:00 a.m. dropped 2°C. From now until 2:00 p.m. increased 2°C per hou

Question 1197359: The temperature recorded in a certain region at 7:00 a.m. it was -4°C, at 9:00 a.m. rose 3°C, and then at 10:00 a.m. dropped 2°C. From now until 2:00 p.m. increased 2°C per hour. What was the temperature at 1:00 p.m.?
A) -4
B) -3
C) -1
D) 3
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

at a.m. it was °C
at a.m. rose °C=>°C+°C=°C
at a.m. dropped °C=>°C-°C=°C

From now until p.m. increased °C per hour:
from a.m to p.m is hours, temperature increased °C =°C
since at a.m was °C, the temperature at p.m is: °C +°C= °C

answer: D)

Answer by ikleyn(52770) (Show Source): You can put this solution on YOUR website!
.

Use your fingers to make all necessary calculations on your own.

Do not disturb the respectful tutors with such primitive questions.

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