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11 October, 14:34

If the water level at the lake continued to change at the same rate for 3 months in a row, explain how you could estimate the total change in water level at the end of the 3 month period.

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  1. 11 October, 15:04
    0
    The fraction is 7/8 is really close to 1, so you could estimate that the water level

    changes by approximately - 5 inches per month. The total change in the water

    level at the end of the 3 month period would be approximately - 15 inches.
  2. 11 October, 18:06
    0
    If the water level at the lake is decreased by the rate r each month, then the total change in water level at the end of the 3 month period is - 3r.

    Step-by-step explanation:

    It is given that the water level at the lake continued to change at the same rate for 3 months in a row.

    Let the water level at the lake is decreased by the rate r each month.

    Change in the water level for 1 month period = - r units

    Change in the water level for 2 month period = - 2r units

    Change in the water level for 3 month period = - 3r units

    So, we conclude that if the water level at the lake is decreased by the rate r each month, then the total change in water level at the end of the 3 month period is - 3r.
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