The temperature is 2 degrees and drops to -15 degrees overnight. Write and then evaluate a subtraction expression to determine the change in temperature.

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Answer:-17 degrees

Step-by-step explanation:Given that:

Initial temperature = 2 degrees

Final temperature = -15 degrees

To Determine:The change in temperature.

Solution:First of all, let us have a look at the method for calculating the change in any quantity.

Let the initial quantity =

Let the final quantity =

Change in quantity = Final quantity – Initial quantity =

Here, we are given the quantity as temperature.

where degrees and

degrees

Therefore, the change in temperature = -15 – 2 =

degrees