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
aliya0001 [1]
3 years ago
9

A large mixing tank initially contains 1000 gallons of water in which 40 pounds of salt have been dissolved. Another brine solut

ion is pumped into the tank at the rate of 5 gallons per minute, and the resulting mixture is pumped out at the same rate. The concentration of the incoming brine solution is 3 pounds of salt per gallon. If A(t) represents the amount of salt in the tank at time t, the correct differential equation for A is Select the correct answer
Mathematics
1 answer:
Inga [223]3 years ago
3 0

Answer:

c the answer is c

Step-by-step explanation:

You might be interested in
The Math Club had a car wash to raise money for a competition. The members charged $10 for each car they washed. What is the ind
Fudgin [204]

Answer:

The dependent variable for this case is the amount of money charged and the independent variable would be the number of cars washed.

And the reason why is because the dependnet variable is the variable of interest (money earned) and the independent the variable that controls the amount of money earned

Step-by-step explanation:

From the info given by the problem we know that the Math Club had a car wash to raise money for a competition. The members charged $10 for each car they washed.

The dependent variable for this case is the amount of money charged and the independent variable would be the number of cars washed.

And the reason why is because the dependnet variable is the variable of interest (money earned) and the independent the variable that controls the amount of money earned

8 0
3 years ago
-25 POINTS- Which of the following terms best describes the figure below?
Mashutka [201]
What figure you have not put up the figure

4 0
3 years ago
Read 2 more answers
The rectangle has an area of x to the second power plus 13x + 36 sq.Meters and a length of x + 9 meters. What expression represe
elena-s [515]

Answer: the expression for the width is x + 4

Step-by-step explanation:

The area of the rectangle is expressed as

Area = x² + 13x + 36 square meters.

The length is expressed as

L = x + 9 meters

To determine the expression for the width of the rectangle, we would factorize the expression for the area. Hence

x² + 13x + 36 = 0

We would find two numbers such that their sum or difference is 13x and their product is 36x². The two numbers are 9x and 4x. Therefore,

x² + 9x + 4x + 36 = 0

x(x + 9) + 4(x + 9) = 0

(x + 4)(x + 9)

Therefore, the expression that represents the width of the rectangle is x + 4

7 0
3 years ago
Justin Bieber's sand castle is 180 cm tall but the wind is
larisa [96]

Answer:

Smh why justin bieber tho.

Step-by-step explanation:

8 0
3 years ago
Hurry which one <br> A.24<br> B.60<br> C.80<br> D.114
Stolb23 [73]
1/2 x base x height

1/2 x 6 x 8 = 24 (a)
3 0
2 years ago
Read 2 more answers
Other questions:
  • The dimensions of a rectangular box are 8 by 5 by 9. What is the surface area?
    5·1 answer
  • Calculate the fraction:<br> 5x6/7<br><br> Plssss help solve...
    8·2 answers
  • Which system of linear inequalities is graphed?
    5·2 answers
  • Two angles are supplementary. The first angle measures 40°. What's the measurement of the second angle?
    15·2 answers
  • Help please im loss
    13·1 answer
  • Solve for this equation<br> z^2-12z=-13
    7·1 answer
  •    In an examination, 15% candidates failed in science and 20% in Mathematics. If 10% failed in both the subjects, find percenta
    15·1 answer
  • There are 4.5 litres of milk in a pot. The chef stirs in 2.5 g of salt and 1.2 litres of water. How much liquid is in the pot?
    12·1 answer
  • A truck tire is about 20 inches in diameter. What is the approximate distance the truck tire will travel in 1 full rotation?
    12·1 answer
  • The side length of an equilateral triangle is 5 cm.<br><br> Find its perimeter
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!