Question

The temperature at sunset was −3°F. During the night, the temperature decreased 10 degrees, and then increased 4 degrees in the morning. Which expression represents the new temperature?

Answer 1

-3-10=-13

-13+4=-9

Answer: -3-10+4

Answer 2

−3°  - 10°  + 4°  represents the new temperature

Step-by-step explanation:

The temperature at sunset was −3°F

During the night, the temperature decreased 10 degrees

Hence temperature at night = Temperature at Sunset - 10°

−3°  - 10°  F

then increased 4 degrees in the morning.

Temperature in Morning = Temperature in° Night + 4°

=  −3°  - 10°  + 4°

= -9° F

 

−3°  - 10°  + 4°  represents the new temperature

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