Question

Ericka decided to compare her observation to the average annual trend, which shows the water rising 1.8 mm/year. Remember, she used 6.2 years as her time period. Explain how she would calculate the difference between how much water levels rose on average and how much the water level fell in the part of the river she observed.

Answer 1

Answer:

Multiply the rate by the years to find the rise in water levels.

1.8(6.2) = 11.16

To find the difference between the water levels, subtract –13.64 from 11.16.

Answer 2

Answer:

The correct answer of this question is the rate by the number of years leading up to the average rise in water level, or 1.8 times 6.2 = 11.16.

Step-by-step explanation:

Given - Ericka decided to compare her observation to the average annual trend and he used 6.2 years as her time period.

To Find - Write down how she would calculate the difference between the average rise in water levels and the average fall in water levels in the river's section.

She'd multiply the rate by the number of years leading up to the average rise in water level, or 1.8 times 6.2 = 11.16.

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