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14-05-2020
Mathematics

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If the old sea ice level was 7 million sq. km in 1978 and the new sea ice level is 4.5 million sq. km in 2020, then what is the percentage change over the years?

Respuesta :

Аноним Аноним

31-08-2021

Answer:

Step-by-step explanation:

1978 - 7 million sq. km

2020 - 4.5 million sq. km

As a fraction 4.5/7

4.5 divided by 7 = 0.642857142857143

Round it to 2 decimal places, 0.64

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