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Frage 78

During one evening the temperature moves from 5 degrees Celsius to -8 degrees Celsius. Select all statements that are true about this change.

  1. The change is -13 degrees.Richtige Antwort
  2. The change is a fall of 13 degrees.Richtige Antwort
  3. The change is 13 degrees, because a change is always reported as a positive amount.
  4. The change is -3 degrees, found by subtracting 5 from 8.

Erklärung

A change is the ending reading less the starting reading, and moving from five above zero to eight below it covers five degrees down to zero and eight more beyond. Stating the size alone discards the direction that the minus sign carries, and subtracting the two sizes assumes the readings share a side of zero.

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Frage 78: During one evening the temperature moves from 5 degrees… · Integers and Negative Numbers · Questena