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AlexFokin [52]
3 years ago
14

Kathy takes her cat to a veterinarian every year for a check-up. Last year, the difference in the cat's weight from teh year bef

ore was -1.56 pounds. This year, the difference in its weight form last year is 0.73 pounds. What is the difference in the cat's weight from 2 years ago?
Mathematics
1 answer:
Nataliya [291]3 years ago
3 0
To find the difference in weights from two years ago, you will need to combine the 2 differences from the two years.  

-1.56 and 0.73 becomes -1.56 + 0.73.

To add a positive and a negative number you will subtract the absolute values of the numbers AND use the sign of the number with the bigger absolute value (negative) in your answer.

|-1.56| - |0.73|
1.56 - 0.73 = 0.83
-0.83

The cat lost 0.83 (-0.83) pounds over 2 years.
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