A large brine tank containing a solution of salt and water is being diluted with fresh water.
The relationship between the elapsed time, t, in hours, after the dilution begins, and the concentration of
salt in the tank, S(t), in grams per liter (g/l), is modeled by the following function.
S(t) = 600.e-0.31
How many hours will it take for the concentration of salt to decrease to 100 g/l?
Round your answer, if necessary, to the nearest hundredth.
hours

step-by-step explanation:

no of data

divide by no of mode

answer: i think it's a

step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.