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

Answer:ty

Step-by-step explanation:

Answer:

yes, it is a improper fraction.

Step-by-step explanation:

1.36=34/25

Answer:

X>3

Step-by-step explanation:

Inequality form:

x>3

Hope this helped there wasn't much information sorry

x = # of people they sign up

200 + 35x is the only correct choice.

Answer:

200+35x is the correct solution

One day is 24 hours.

Since there are 60 minutes in one hour there are 1440 minutes in one day.

5 hours 20 minutes is the same as 300+20, 320 minutes.

So 5hr 20min is [tex]\frac{320}{1440}[/tex] of the day.

(we can simplify that to [tex]\frac{2}{9}[/tex])

:)

Answer:

look down

Step-by-step explanation:

the square root of 5 is : 2.2360679775

rounded to the nearest thousandth is 2.236

__________________________________

the square root of 19 is: 4.35889894354

rounded to the nearest thousandth is 4.359

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the square root of 99 is: 9.94987437107

rounded to the nearest thousandth is 9.950

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the square root of 42 is: 6.48074069841

rounded to the nearest thousandth is 6.481

hope this helps :)

Answer:

F(4) = -3

Step-by-step explanation:

First, you would plug in 4 for x. PEMDAS, so you would multiply -3 and 4, giving you -12. Then add 9, which gives you -3.

Answer:

Step-by-step explanation:

f(4)= -3*4+9

f(4)=-12+9

f(4)=-3

Answer :

Factors of 12 are

[tex] 1 \times 12 \\ 2 \times 6 \\ 3 \times 4. [/tex]

Answer:

$27186.57

Step-by-step explanation:

Formula: start(interest)^time

First, we need to calculate the interest which in this case would be 1.035 (1+(3.5/100)) since it is increasing 3.5% each year. Then we can just plug the values into the formula to get:

22,500(1.035)^5.5 = 27186.57

Answer:

Step-by-step explanation:

The fist answer is correct!!

Answer:   A

Step-by-step explanation:

Answer:

b  4<9

Step-by-step explanation:

Answer:

a(-3,-2)

b(-1,2)

c(3,2)

d(5,-2)

Step-by-step explanation:

a(-3,-2)

b(-1,2)

c(3,2)

d(5,-2)

Answer:

4. Answer is 19

5. Answer is 77

Step-by-step explanation:

65-(-12)

= 65+12

=77

Answer:

Step-by-step explanation:

4.

[tex]-64-(-83)\\\\\mathrm{Apply\:rule}\:-\left(-a\right)=a\\\\=-64+83\\\\\mathrm{Add/Subtract\:the\:numbers:}\:-64+83=19[/tex]

5.

[tex]Kim = 65 \:points\\Sister =-12\\\\Difference = 65-(-12)\\\\\mathrm{Apply\:rule}\:-\left(-a\right)=a\\\\=65+12\\\\=77[/tex]

Answer:

The picture represents y = x^2 +x -12.

x-int = (-4,0) and (3,0)

y-int = (0, -12)

Answer:

D) 80

Step-by-step explanation:

Your answer is 80 because to find median you must Add up all of the numbers and divide by the number of numbers in the data set. The median is the central number of a data set. Arrange data points from smallest to largest and locate the central number. This is the median. Which I did and got 80 Your welcome

Hope this helped if it did plz give me brainiest Thanks <3

Answer:

5 chaperones to 25 students

Step-by-step explanation:

You have to see which expression can be multiplied by 5 since there are 5 chaperones each number of students for example:

5 x 2 = 10

5 x 3 = 15

5 x 4 =20

5 x 5 = 25

Answer:

80

Step-by-step explanation:

Initial ratio:

Teachers to students

1 : 15

Ratio after:

Teachers to students

3 : 40

The number of students did not change, so we can make the students of the initial ratio and the students of the ratio after the same.

1 : 15 =  8 : 120

3 : 40 = 9 : 120

120 units = 1200

1 unit = [tex]\frac{1200}{120} =10[/tex]

Initial teachers = 8 units = [tex]8*10=80[/tex]

Answer:

1:2

Step-by-step explanation:

:)

Step-by-step explanation:

36 : x :: x : 16

16 x 36 = x2

576 = x2

Taking square root on both sides

24 = x

Answer:

36/x = x/16

x^2 = 36*16

x = √36*16

x = 6*4

x = 24

Hey there! I'm happy to help!

A variable is a letter or symbol used to represent an unknown number.

We see two letters here: m and n. Therefore, those are the variables.

Have a wonderful day! :D

Answer:

38.) is x = 11/4 and the one bellow it is x=-5

Step-by-step explanation:

Answer:

x = 1, y = 3

Step-by-step explanation:

Given:

Now let's check the pairs of x and y:

x = 6, y = 3

x = 3, y = 5

x = 6, y = 4

x = 1 , y = 3

Answer:

D. x= 1, y = 3​

Step-by-step explanation:

I took the test

Answer:

2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Write the equation

4x-9=11

Add 9 to both sides

4x=20

Now divide by GCF (4)

4x/4=20/4

x=5

Hope this helps! Plz award Brainliest : )

Answer:

-8x + 146

Step-by-step explanation:

Step 1: Write out expression

3(58 - 6) - 2(4x + 5)

Step 2: Parenthesis

3(52) - 2(4x + 5)

Step 3: Multiply

156 - 2(4x + 5)

Step 4: Distribute

156 - 8x - 10

Step 5: Combine like terms (constants)

-8x + 146

Answer:

147.0336

Step-by-step explanation:

use long multiplication

Answer:

[tex]2p^{2}[/tex] - p is a quadratic binomial

Step-by-step explanation:

The expression contains only two terms resulting in the classification of a binomial; however, the expression begins with a squared term, so it is classified as a quadratic binomial.

Answer:

quadratic binomial

Step-by-step explanation: