Question

Manuel is also in Mr. Whittaker’s science class. He observed that the water level rose 1.8 millimeters per year, which matches the average annual trend. This occurred for 2.2 years. Explain how to determine the total variation in water level. How can you check your answer?

Answer 1

Answer:

To determine the total variation in water level, multiply 1.8 mm/year by 2.2 years. The exact answer is 3.96 mm/year. Use rounding to check the answer by using the problem 2(2) =4. 4 is close to 3.96.

Step-by-step explanation:

Answer 2

Answer:

To find the total variation in water level,I would multiply 1.8 by 2.2,equals 3.96.To check the answer, I would round the numbers and multiply them. Ex.: 2(2) =4. 4. Four is actually really close to 3.96!