Question

The water level is a number that indicates whether the level is above or below normal using positive or negative values. After a heavy storm, the water level of a river is −3.7 feet. This level is 1/2 times 2.5 feet more than the previous water level.
What was the previous water level?

Drag and drop a value into the box to correctly complete the statement.

The previous water level of the river was [Choose] feet.

A. -18.5

B. -9.9

C. -4.9

D. -4.3

Answers

  1. Answer:
    -4.95 feet, which corresponds to choice (A).
    Step-by-step explanation:
    To solve this problem, we can set up an equation using the given information. Let W be the previous water level. We know that the current water level is -3.7 feet and that it is 1/2 times 2.5 feet more than the previous water level, so we can set up the equation:
    W = -3.7 – (1/2)(2.5)
    Simplifying, we get:
    W = -3.7 – 1.25
    W = -4.95
    The correct answer is therefore -4.95 feet, which corresponds to choice (A).

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