Question

Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. Write an equation to model this scenario.

a) Water Level = 34 - 0.5t
b) Water Level = 34 + 0.5t
c) Water Level = 34t - 0.5
d) Water Level = 34t + 0.5

Answer 1

The correct equation to model the receding water level of a river is 'Water Level = 34 - 0.5t', representing the initial water level and the rate of change over time in days.

Step-by-step explanation:

The question requires us to find the water level of a river that is receding. To represent this situation with an equation, we need to consider the initial water level and the rate at which it is changing over time, denoted by 't' in days. The correct equation for the given scenario is Water Level = 34 - 0.5t, where 34 represents the initial water level in feet, and 0.5t is the product of the rate of change (0.5 feet per day) and the time 't' in days.