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NatsuDragneel400
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PLEASE HELP IM HAVING A HARD TIME!!!
In a local city, the temperature at noon is -3 degrees Celsius. The temperature is expected to decrease 2.5 degrees Celsius by each hour until the temperature reaches -18 degrees Celsius.

How many hours will it take for the temperature to reach ?

A6 hours
B7 hours
C7.2 hours
D8.4 hours

Verified Answer :

bellayeshua7

2.5*6=15
(-3)-15= -18

Answer: Option 'A' is correct.

Step-by-step explanation:

Since we have given that

At noon, the temperature was = -3 degrees

Temperature reduced by = 2.5 hours per day

Temperature reaches = -18 degrees

Let the number of hours be 'x'.

According to question,

\(-3-2.5x=-18\\\\-2.5x=-18+3\\\\-2.5x=-15\\\\x=\dfrac{15}{2.5}=6\)

Hence, it will take 6 hours for the temperature to reach.

Option 'A' is correct.

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