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PolarNik [594]
2 years ago
5

The temperature in Anchorage, Alaska was 4 degrees Fahrenheit at 2:00 PM. The temperature dropped 2.5 degrees per hour until 9:0

0 PM. The temperature dropped another 9 degrees by midnight.
How much colder was it at midnight than at 2:00 PM?

A.) 17.5 degrees colder
B.) 26.5 degrees colder
C.) 22.5 degrees colder
D.) 18.5 degrees colder
Mathematics
2 answers:
VLD [36.1K]2 years ago
5 0

Answer:

It was 26.5 degrees colder at midnight than at 2:00 pm

Step-by-step explanation:

We have that:

At 2:pm, it was 4 degrees.

The temperature dropped 2.5 degrees per hour until 9:00 pm.

From 2pm to 9pm, there are 7 hours. 2.5 per hour, it was 4 degrees at 2 pm.

So at 9 pm the temperature is:

4 - 2.5*7 = -13.5

The temperature dropped another 9 degrees by midnight.

At midnight, the temperature is -13.5 - 9 = -22.5 degrees

How much colder was it at midnight than at 2:00 pm?

2pm: 4 degrees

Midnight: -22.5 degrees

How much coldren

-22.5 - 4 = -26.5

It was 26.5 degrees colder at midnight than at 2:00 pm

olga_2 [115]2 years ago
3 0

Answer:

B. 26.5

Step-by-step explanation:

2:00 PM - 9:00 PM =  7 hours

7 * 2.5 = 17.5

17.5 + 9 = 26.5

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