Atub filled with 50 quarts of water empties at a rate of 2.5 quarts per minute. let w = quarts of water left in the tub and t = time in minutes. choose the correct answers. which equation models the relationship? is there a viable solution when time is 30 minutes?

A. w = 50 - 2.5t

B. For t = 30 minutes there is no viable solution.

Step-by-step explanation:

A. A tub is filled with the amount of water = 50 quarts

Rate at which the tub is getting emptied = 2.5 quarts per minute

Let the time taken to empty the tub = t minutes

Then amount of water leaked from the tub in t minutes = 2.5t

If w quarts is the amount of water left in t minutes then equation will be

w = 50 - 2.5t

B. To calculate the time to get the tub emptied w = 0

then 50 - 2.5t = 0

2.5t = 50

t =

t = 20 minutes

Therefore, for time t = 30 minutes there is no viable solution because the tub will be emptied in 20 minutes.

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

i need a picture

step-by-step explanation: