1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tomtit [17]
3 years ago
14

A large brine tank containing a solution of salt and water is being diluted with fresh water. The relationship between the elaps

ed 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 x e^{{-0.3t}} 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.
Mathematics
1 answer:
kati45 [8]3 years ago
7 0

Answer: 5.97 hours

Step-by-step explanation:

S(t) = 100

I put in 100 = 600 x e^-0.3t and it came out to be 5.97 when rounded to the nearest hundredth. It is also correct on khan academy.

You might be interested in
If 3 inches equals 14 feet what is 35 feet in inches
sergij07 [2.7K]

Answer:

420 inches

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Six hundred paving stones were examined for cracks, and 15 were found to be cracked. The same 600 stones were then examined for
9966 [12]

Answer: 0.01

Step-by-step explanation:

Let the events are :

C = paving stones found to be cracked.

D = paving stones found to be discolored.

Given : Total stones : T = 600  (i)

C = 15

D=  27

C'∩D'=  564   (ii)

Since C'∩D' = (C∪D)' = T- C∪D         (iii)

From (i) , (ii)and (ii) , we have

564 = 600- C∪D

⇒ C∪D=600- 564= 36

Formula : C∩D= C+D- C∪D

Put values , we get

C∩D= 15+27-36=6

Now ,

P(C\cap D)=\dfrac{C\cap D}{T}=\dfrac{6}{600}=0.01

The probability that it is both cracked and distorted is 0.01.

4 0
3 years ago
Which could be the function graphed below?
Lina20 [59]

Answer:A

Step-by-step explanation:

if you look at it carefully the endpoint is at the bottom of the Y value which looks like negative 2 this is the only answer you can be

3 0
3 years ago
What is 8% of 1125?
11111nata11111 [884]

Answer:

90

Step-by-step explanation:

1125/100=11.25

11.25x8=90

8 0
2 years ago
Are the co ordinates of A 3,4 ?
Lubov Fominskaja [6]

Answer:

A: 2,3

B: -5,1

for ii and iii and b), the easiest way to find the points are by moving on the x-axis(straight across/ horizontal line), then the y-axis(the up to down one). the first point for example (-3,-2), you would move 3 times to the left, and 2 times to the bottom, because if its a negative x, you move left, while if its a positive x, you move right, and if its a negative y, you move down, while a positive y moves you up.

Step-by-step explanation:

I really hope it helps!!!

4 0
2 years ago
Read 2 more answers
Other questions:
  • The container that holds the water for the football team is 1/6 full. After pouring in 14 gallons of water, it is 3/4 full. How
    6·1 answer
  • 2x^3y + 18xy - 10x^2y - 90y Part A: Rewrite the expression so that the GCF is factored completely.
    6·1 answer
  • If g(x)=f(x+k), what is the value of k?
    9·2 answers
  • Find area of a squares with a side lengths of 6 ft round to the nearest hundredth
    6·1 answer
  • What is -5(3m+6)=-3(4m-2)
    8·1 answer
  • It is not D, I just had this question.
    8·1 answer
  • What is the slope of this line?
    9·1 answer
  • Which one of the following is an irrational number?
    12·1 answer
  • Fred has 36 strawberries and 42 blueberries. He wants to use them to garnish desert so that each desert has the same number of b
    15·1 answer
  • Which inequality is true
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!