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4 years ago

8

the water level in a swimming pool decreases from 60in to 58.25in in one week. Assuming that the water level changes at a consta

nt rate, how much did the water level decrease each day?

2 answers:

loris [4]4 years ago

6 0

Answer: -0.25 in, per day.

Step-by-step explanation:

Given : The water level in a swimming pool decreases from 60 in to 58.25 in in one week.

Here Initial water level = 60 in

Final water level = 58.25 in

And one week = 7 days

We assume that the water level changes at a constant rate.

Then the rate of change in water level will be given by :-

$\text{Rate of change}=\dfrac{\text{Final position-Initial position}}{\text{Time}}$

$\text{Rate of change}=\dfrac{58.25\ in - 60\ in}{\text{7}}\\\\\Rightarrow\ \text{Rate of change}=\dfrac{-1.75}{7}=-0.25\ in/day$

Hence, the water level decrease each day = -0.25 in, per day.

shutvik [7]4 years ago

3 0

60-58.25= 1.75... 1.75 divided by 7 (days in a week) = 0.25 inches per day

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