Mathematics College

An inlet pipe on a swimming pool can be used to fill the pool in 33 hours. The drain pipe can be used to empty the pool in 34 hours. If the pool is [tex]\frac{2}{3}[/tex] filled and then the inlet pipe and drain pipe are opened, how many more hours would it take to fill the pool? Round your answer to two decimal places, if needed.

Answers

Answer 1

Answer:

374 hours

Step-by-step explanation:

Filling rate is 1/33Draining rate is 1/34

The difference is the filling rate with both lines open:

1/33 - 1/34 = 1/1122

The pool is 2/3 full and needs filling the remainder, 1/3.

Time required to fill:

1/3 : 1/1122 = 1122/3 = 374 hours

Related Questions

PLEASE HELP WITH THIS ONE QUESTION
A 60 cm by 80 cm photo is to be surrounded with a matting of equal width. The photo and matting is to be covered by a 1 m^2 sheet of expensive glass. Find the width of the matting.

Answers

We know the area = width height. So we can set up this equation, where x is the unknown space between the entire frame and the photo:
(60cm + x) (80cm + x) = 1m^2

And then convert the m^2 to cm^2 so it’s all the same units:
1m^2 = 1m x 1m = 100cm x 100cm = 10000cm^2

So we get:
(60cm + x) (80cm + x) = 10000cm^2

Then solve for x:

(60cm + x) (80cm + x) = 10000cm^2
4800 + 140x + x^2 = 10000
x^2 + 140x - 5200 = 0

Using the quadratic formula:
x = (-b +/- sqrt(b^2 - 4ac)) / 2a

x = ( -140 +/- sqrt(140^2 - 4(1)(-5200)) )/ 2(1)
x = ( -140 +/- sqrt(19600 -(-20800)) )/ 2
x = ( -140 +/- sqrt(40400)) / 2

x = ( -140 + 200.9975 )/ 2
x = 30.49875

x = (140 - 200.9975)/2
x = -60.9975

So we get:
x = 30.49875 or -60.9975


The width of the matting is the part of the width underneath the photo (60cm) plus the spacing between the photo and the border, x (which would have to be 30.5 because it doesn’t make sense as a negative). So it’s:
60cm+30.50cm = 90.50 cm

The width of the matting is 90.50cm.

please help me with this sum​

Answers

its upsidedown what are you doing

Can anyone help me with the problem in the picture?

Answers

X = 45.

Since opposite exterior angles are congruent, you can set the 2 values equal to each other. When you solve for x, you should get 45.

Which equation does not belong? Explain your reasoning 2x + y = 4 y = -2x + 4 f(x) = -2x + 4 2x + 2y = 4

Answers

Answer:

2x + 2y = 4  does not belong

Step-by-step explanation:

2x + y = 4     → y = -2x + 4

y = -2x + 4    → y = -2x + 4

f(x) = -2x + 4 → y = -2x + 4

2x + 2y = 4   → y = -x + 2

Select the correct answer from each drop-down menu.

The slope of line p is___
and the slope of line q is ____

Answers

Slope is rise/run which is how I found the slopes.

Slope for line q is -3 and for line p it is 3.

Hope this helps !!

solve the inequality. graph your solution
6(y+1)>6

Answers

Step-by-step explanation:

[tex]6(y + 1) > 6 \\ 6y + 6 > 6 \\ 6y > 0 \\ y > 0[/tex]

What is the result of the division?
2x^3-5x*4
—————-
x-3

Answers

Answer:

2x² + 6x + 13 remainder 43

Step-by-step explanation:

Long division:

2x³ - 5x + 4 ÷ x - 3 = 2x² + 6x + 13 rem 43

2x³ - 6x²

       6x² - 5x

      6x² - 18x

                13x + 4

                13x - 39

                        43

I have 47 questions I posted going to post the second if you answer all the I give you 100 points and brainlist

Answers

Answer:

1. 245

2. Rational Number

3.integers

4. false

5.square root

Step-by-step explanation:

Question 1 (3 points)
CALCULATOR PERMITTED FOR SUBPART 3
At a bake sale, plates of cookies, p, are sold for $5 each. The amount of money
from the sale of cookies is expressed as dollars, d. Which equation represents the
earnings of the bake sale?
Plates of Cookies (p)
1
2
3
4
Earnings (d)
5
10
15
20
HN
o lol
O a
d = p + 5
Oь
d =P
=
5

Answers

done good job question giy

HELPPPPP I NEEED TO GET A GOOD GRADE OR I'M BUSTEDDDDDDDD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

(MATH)

I WILL GIVE BRAINILEST! PIC DOWN BELOW!!

Answers

Answer:

D) -31

Step-by-step explanation:

use PEMDAS

3^2-(5 x 2^3)

3^2-(5 x 8)

3^2-40

9-40

-31

the force (F) needed to cause the acceleration (a) of an object of mass, m, is given by the equation, F = ma where m is the objects mass. if a 12-newton force causes the object to accelerate to 3 m/s2 , what is the object's mass? the unit for this mass is kg.

help me pls /ᐠ｡ꞈ｡ᐟ\​

Answers

Answer: According to Newton s Second Law of Motion, also known as the Law of Force and Acceleration, a force upon an object causes it to accelerate according to the formula net force = mass x acceleration. So the acceleration of the object is directly proportional to the force and inversely proportional to the mass.

Step-by-step explanation:

If F = ma where m is the objects mass. if a 12-newton force causes the object to accelerate to 3 m/s2 , then the mass in kg of the objects is 4 kg

What is Force?

When a body tends to modify or change the state by an external cause, it is called Force.

Given:

F=ma

Where,

F = Force (N)

m = mass (kg)

a = acceleration (m/s²)

If

F = 12-Newton

m = 3 m/s²

a = ?

F = ma

12 = m × 3

12 = 3m

divide both sides by 3

m = 12/3

m = 4 kg

Therefore, the mass in kg of the objects is 4 kg

To learn more on force click:

brainly.com/question/25250873

#SPJ2

In 1995, the cost of tuition at a large Midwestern university was $146 per credit hour. In 2001, tuition had risen to $200 per credit hour.

Determine a linear equation to represent the cost, C, of tuition as a function of x, the number of years since 1990. (Assuming the cost increases by the same amount each year.)

Linear Equation:
 
In the year 2008, tuition will be ($ )per credit hour.

In the year( ) , tuition will be $317 per credit hour

Answers

Answer:

72 is the correct answer

Answer:

I believe 72 is the correct answer

Step-by-step explanation:

Whats the two answers? ( Branliest )

Answers

Answer:

B and C

Step-by-step explanation:

Factors:

(A) x + y, no product(B) 5(x + y), two factors(C) (x - y)(x + y), two factors(D) xyz, three factors

#A

x+y

No

#B

5(x+y)5x+5y

Yes

#C

(x-y)(x+y)

Yes

#D

xyz

No

what's the answer???

Answers

Answer:

Step-by-step explanation:

y-4=-2(x-8)

What is a pair of alternate interior angles?

Answers

Answer:

D. ∠2 and ∠8

Step-by-step explanation:

common sense lol

please answer the question above​

Answers

If a polygon has 20 sides, then the sum of all of its interior angles is 3240°.

solve pls brainliest

Answers

Answer:

a) 52

B)6

Step-by-step explanation:

B) -5+11=6

It's not that hard, you shall know negative signs rules

-3-(-5)What is the answer to this equation

Answers

Answer:

2

Step-by-step explanation:

[tex] - 3 - ( - 5) \\ - 3 + 5 \\ 2 \\ [/tex]

what is the slope of the line containing the points (3,-7) and (-3,7)

Answers

Answer:

-7/3

Step-by-step explanation:

To find the slope, we use the slope formula

m= ( y2-y1)/(x2-x1)

   = ( 7 - -7)/(-3 -3)

    = ( 7+7)/( -6)

    = 14/-6

   = 7/-3

   = -7/3

Step-by-step explanation:

m = y2-y1 / x2-x1

= 7+7 / -3-3

= 14/-6

= -7/3

Which of the following coordinate points have a y-value of 6? Select all that apply.

A) (3, 6)
B) (6, 5)
C) (8, 6)
D) (1, 6)

Answers

Answer

A, C, and D

Step-by-step explanation:

You are trying to find the y value in (x,y) form. Therefore, it has to be A, C, and D because they all have a 6 in the y value.

I have more question then this one

Answers

The last option is correct

solve for w
6w+2=9w+14
​

Answers

Answer:

w = 4

Step-by-step explanation:

6w+2=9w+14

9w-6w=14-2

3w=12

w=12/3

w=4

I WILL MARK BRAINLIST ASAP

Andre opened a bank account. He deposited $135 each month for 5 months. His bank charged him $5 each month to use the account.

How much money is in Andre's account after 5 months?

A.
$675

B.
$650

C.
$115

D.
$130

Answers

Answer:

B. $650

Step-by-step explanation:

Every month Andre is losing $5 each month and he adds on $135 each month. This can be expressed as:

($135 × 5) - ($5 × 5)

= $675 - $25

= $650

B. $650 ( Explanation: $135 x 5(months) = 675 - 25= 650
Note. $ 25 represents the total monthly charge for each month for 5 months (5x5=25)

2/5 x 3/7
What is the answer please.

Answers

Answer:

6/35 pls brainliest

Step-by-step explanation:

Simplify (−4.5)(−6)(5.4).
i need the answer pls

Answers

Answer:

145.8

Step-by-step explanation:

−4.5 x −6 x 5.4

Answer:

the answer is 145.8

Step-by-step explanation:

sorry if I did it wrong

Sarina rounded a number to the nearest whole number and got 7.
which number could be the number Sarina rounded to the nearest whole number?

Answers

Sarina round 49 to get the answer 7

Consider the equation 2b = a. Solve the equation for b.

Answers

Answer:

b = a/2

Step-by-step explanation:

Answer:

the coefficient of b is 1 so and 1*0 is 0

PLEASE HELP ITS MATH THANK YOUUUU

Answers

Answer:

44 millimeters

Step-by-step explanation:

The ratio is set up as millimeters : meters

On the map, 4 millimeters : 9 meters

The actual length ratio is represented as x millimeters : 99 meters

Since we know its proportional, we can set up the equation:

4/9 = x/99

Solve:

4/9 = x/99

4 * 99 = 9x

396 = 9x

x = 44 millimeters

Another Way

Since we already know it is proportional, 99 = 9 x 11

So we can multiply 4 x 11 to get 44 millimeters.

-Chetan K

Negative 1/3 in decimal form

Answers

Answer:

-0.3333334

Step-by-step explanation:

common sense

Answer:

-0.33

Step-by-step explanation:

The area of manang district is square kilometre is 2,246 find the prime factors of 2246​

Answers

The prime factor of 2246 is 1123
Other Questions
Put the following equation of a one into a slope -intercept form, simplifying all fractions. 8x+6y=-54 in the law of superposition which layer is the oldest brainly Will give brainliest to the correct answerWrite each function in slope-intercept form:9.4y=8x1010. 5x+ 2y=10 what was the forbidden fruit in the garden of eden What type of clause or phrase is italicized in the sentence below?The fishing having become so poor, we packed up camp and moved to another lake.O noun clauseO nominative absoluteo past participial phraseelliptical clauseO adverb clause 4: A- What did the policeman think Wallace was lying about? B- How do you know? trong dn s mt b 70 tui c kh bng SLE l 2% .Nu ANA dng tnh th kh nng b bnh SLE l bao nhiu Technician a says that the piston engine starts and stops several times per 2nd technician B says that with the rotary engine each rotor has 3 working chambers so it acts like a 3 cylinder engine while it is at operating For how many shoe strings will Toby and Marie have the same amount of money in the account? Must show your work by making a table or solving algebraically by setting the equations equal to each other. PLEASE HELP!!!!!!! 50 POINTS!!!! If you have completed this i need this done ASAP!!!!!!! Need help with this English the primary role of american political parties is to ______. What does term critical reading mean?? Explain How critical reading assist you to select fundamental concepts and contents How is place influencing Salvas identity?Chapter 4 The cost of making a cake is $9. The Baker wants to make a profit of $ 9 per cake and the cake is to be cut into 36 pieces, what is the selling price of each piece? Explain how heat gets transferred? Which phrase best completes the diagram?Roman SenatorsMostly made upof patricians?Had influenceover consulsA. Ran specific government servicesB. Served as judges in courtC. Passed laws for the republicD. Controlled the largest armies< PREVIOUS Qu fecha es el Da de San Patricio? please help me to solve problems