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Mandarinka [93]
3 years ago
10

Scientists are monitoring a whale's weight by observing its weight change once a week, over a 4 week period. How much has the wh

ale's weight changed over the entire 4 weeks?

Mathematics
2 answers:
Kay [80]3 years ago
8 0

Answer:

Option D. -3.9 will be the answer.

Step-by-step explanation:

Change in weight of the whale in first week = (-2.1) pounds

Change in weight of the whale in second week = (+0.3) pounds

Change in weight of the whale in 3rd week = (-1.7) pounds

Change in weight of the whale in 4th week = -0.4 pounds

Total change in weight over the period of 4 weeks = - 2.1 + 0.3 - 1.7 - 0.4

= -3.9 pounds

Therefore, Option D. -3.9 will be the answer.

irina [24]3 years ago
4 0

Answer:


Step-by-step explanation:

-2.2 - (-1.7) - (-0.4) = -4.2 + 0.3 = -3.9

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