The air temperature in the morning was -12 C, and by the evening it dropped by 7 C. What was the temperature …
| May 22, 2021 | education
We find out the air temperature after lowering by 7 ° С as the sum of two negative numbers (- 12) and (- 7), since the mercury column has gone down by 7 divisions on the temperature scale.
(- 12) + (- 7) = – 12 – 7 = – 19.
Answer: the air temperature in the evening became – 19 ° С
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