An inlet pipe on a swimming pool can be used to fill the pool in 15 hours. The drain pipe can be used to empty the pool in 20 hours. If the pool is [tex]\frac{1}{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.


_____________ hours

Answers

Answer 1

Answer:

40 hours

Step-by-step explanation:

Rate of filling is 1/15Rate of draining is 1/20

If both lines are open the rate of filling is:

1/15 - 1/20 = 4/60 - 3/60 = 1/60 per hour

Since tank is 1/3 full we need to fill the remaining 2/3 of it.

Time required:

2/3 : 1/60 = 2/3*60 = 40 hours

Related Questions

Label the figure.
20,24,114,702

Answers

The first diagram area= 810 perimeter= 114
The second diagram area= 35 perimeter= 24

Simplify by using the product, quotient, and power rules

Answers

Answer:

3y^5

Step-by-step explanation:

What do you call 7 in this division problem?
28 = 7 = 4
O A. Dividend
B. Divisor
C. Quotient
D. Product
SUBMIT

Answers

It’s would be b Divisor

math read please IMA WRITE USELESS WORDS CONTINUE

Answers

Basically just show using numbers how the shapes are not alike like what makes them different make some numbers up and do it just like that and explain how the shapes won’t Align with each other

write an equation of the line passing through the point( 3, -1) and parallel to the line y=2/3 x-5

Answers

Answer:

[tex]y = \frac{2}{3} x - 2[/tex]

Step-by-step explanation:

find The y-intercept

[tex] - 1 = \frac{2}{3} (3) + b \\ - 1 = 1 + b \\ b = - 2 \: \: \: \: y - intercept[/tex]

The equation of the line

[tex]y = \frac{2}{3} x - 2[/tex]

PLEASE HELP ITS MATH THANK YOUUUU

Answers

Answer: 10 meters

Explanation:

29 cm : blank meters

So how do we get from 348 cm to 29 cm?

To figure this out we divide.

348 divided by 28 = 12

we divided by 12 so we do the same with 120

120 divided by 12 = 10

So that’s the answer.

I hope this makes sense and helps you :)

Simplify the following:

[tex]\sqrt{50} x^{2} y^{3}[/tex]

Answers

Answer:

5xy[tex]\sqrt{2y}[/tex]

Step-by-step explanation:

Answer: simplify

5√2x² y²

cuantos paquetes de 5/8 de kilo harán falta para envasar 125 kilos de harina

Answers

Step-by-step explanation:

dcfhhjjvcdddfhjkhfsazgjhsswrup07532490ojdhj

solve for the value of n
(9n) (8n+8)

Answers

Answer:

undoable

Step-by-step explanation:

theres no =

A seed weighs 0.00002421 ounces. What is this value in correct scientific notation?
A) 2421 x 108
B) 2.421 x 105
2.421 x 10-5
D 2421 x 10
-8

Answers

Answer:

C) 2.421 x 10^-5

Step-by-step explanation:

A negative exponent on a power of ten will make the decimal point go back that amount of times to the left, making it a lesser number. A positive exponent will cause it to move to the right, making the number greater. We aren’t going to need to make any of the numbers being multiplied greater, so we can eliminate the first two. Then we need to solve the others. We can do this by moving the decimal the amount of times that we see the exponent equals. Since C is -5, we move it to the left 5 times, and get the weight of the seed; 0.0002421.

Hope This Helped!

suzanne bought 50 apples at the apple orchard.She bought 4 times as many red apples as green apples. how many more red apples than green apples did suzanne buy?

Answers

Answer:

30 more red apples

Step-by-step explanation:

let 'a' = # of green apples

let '4a' = # of red apples

a + 4a = 50

5a = 50

a = 10

# of red apples:  10(4) = 40

# of green apples:  10

Choose the 3 correct answers please! ( Branliest )

Answers

Answer:

Option A,B,E are equivalent.

Step-by-step explanation:

What we are given: Expression

To find : Which expressions are equivalent to given expression ?

Solution :

We solve the expression and check,

A) Yes it is equivalent.

B) Yes it is equivalent.

C) No it is not equivalent.

D) No it is not equivalent.

E)  Yes it is equivalent.

Therefore, Option A,B,E are equivalent.

Step-by-step explanation:

Hope this Helps =)

Answer:

A , C , E

Step-by-step explanation:

Answer A :

[tex] - 30(3 + 2w) \\ - 30(3) - 30(2w)\\ - 90 - 60w[/tex]

It's equivalent. ✔️

Answer B :

[tex]( - 9 - 6w) - 10 \\ - 9 - 6w - 10 \\ - 19 - 6w[/tex]

It's not equivalent. ✖️

Answer C :

[tex] - 3(30 - 20w) \\ - 3(30) -3(20w) \\ - 90 - 60w \\ [/tex]

It's equivalent. ✔️

Answer D :

[tex](6 + 4w) \times 15 \\ 15(6)+ 15(4w) \\ 90 + 60w \\ [/tex]

It's not equivalent. ✖️

Answer E :

[tex] - 20(4.5 + 3w) \\ -20(4.5) -20(3w) \\ - 90 - 60w \\ [/tex]

It's equivalent. ✔️

Solve for the variable

9b+4−8b=7

b = ?

Answers

The answer is 3
B+4=7
B=7-4
B=3

Solve using proportions

Answers

4:3 means 4/7 of the class are men

4/7 of 490 is 280

Homework help!!!!!!!!

Answers

Answer:

u=-1

Step-by-step explanation:

if you replace with a or b the answer on the left side is actually bigger since it is closer to 0 than -20. same with choice d

choice c makes -12-28 which is a smaller value than -20

the answer is u= -1

-

Jeffrey makes 3% commission on
his sales. If his sales total $1800
this week, how much money will he
make?

Answers

Answer:

He will make $54

please help algebra ii!

Answers

Answer:-4

Step-by-step explanation:we can easily see it on the graph

Yeah and that is what’re the point is on the graph

The probability that record drawn randomly from a standard deck of 52 cards is a four

Answers

Answer:

1/13

Step-by-step explanation:

no.of sample space n(S) = 52

no.of favourable cases n(E) = 4

probability of getting a four p(E) = n(E) / n(s)

or, 4/52

or 2/26

or 1/13

therefore,the probability of getting a four is 1/13.

Can someone answer this please I need it ASAP

Answers

Answer:

Frank scored 10 runs

B) the mean is 20

Step-by-step explanation:

Which sign makes this number sentence true?

|-56| __ |56|
A. >
B. <
C. =
D. x

Answers

C. =, the absolute value of a number is always positive

add the fraction 9/+1 1/6=10 1/4​

Answers

Answer:

41/4

Step-by-step explanation:

CAN Someone PLS HELP ME PLSSSSSSSSSSSS

Answers

Answer: where is the rest of the problem

Step-by-step explanation:

-$107.85

the price is three for $1.48 how much will one pepper cost?

Answers

Answer:

$0.4933

Step-by-step explanation:

i guess

Just divided by 3 ;)

PLEASE HELP ITS MATH THANK YOUUUU HURRY

Answers

You need to get this app, it’s so helpful!

solve pls brainliest

Answers

Answer:

Below.

Step-by-step explanation:

a. 360 - 168

= 192 ft above sea level.

b. -168 - (-132) = -36.

36 feet lower.

I NEED HELP PLS.......

Answers

-4x - 2.4

explanation: 1.3 - 3.7 = -2.4
then you leave the -4x by itself since it’s the only variable

When converted to a household measurement, 9 kilograms is approximately equal to a

Answers

Abt 317.4 oz or 19.4 lb

Answer:

D) 19.8 lbs

Explanation:

1kg in household measurement is equal to 35.274 ounces. 35.274*9=317.466 ounces.

1kg is also equal to 2.205 lbs. 9*2.205=19.8416

9 kg is also equal to 9000 grams, but grams are not a part of the household measurement system

a) 9000 grams. b) 9000 ounces. c) 19.8 ounces. d) 19.8 pounds.

This leaves us with 19.8 lbs

MATH WEEK 5 DISCUSSION

Answers

5 ————————————————————————-

I really need assistance with this question

Answers

Answer:

first

Step-by-step explanation:

Lumen

Managerial Accounting

Chapter 5: Cost Behavior and Cost-Volume-Profit Analysis

5.6 Break – Even Point for a single product

Finding the break-even point

A company breaks even for a given period when sales revenue and costs charged to that period are equal. Thus, the break-even point is that level of operations at which a company realizes no net income or loss.

A company may express a break-even point in dollars of sales revenue or number of units produced or sold. No matter how a company expresses its break-even point, it is still the point of zero income or loss. To illustrate the calculation of a break-even point watch the following video and then we will work with the previous company, Video Productions.

Before we can begin, we need two things from the previous page: Contribution Margin per unit and Contribution Margin RATIO. These formulas are:

Contribution Margin per unit = Sales Price – Variable Cost per Unit

Contribution Margin Ratio = Contribution margin (Sales – Variable Cost)

Sales

Break-even in units

Recall that Video Productions produces DVDs selling for $20 per unit. Fixed costs

In a school 2/3 parts of the total numbers of students. 3/10 parts are between 8 to 12 years and the remaining are above 12 years . What parts of the students are above the age of 12 years.​
ans:3/10​

Answers

3/10

As you know the answer already I don't think you need any further explanation :)

Other Questions
describe how you would open a new open word processing document ASAP!! types of caldera lakes in africa Factor out the coefficient of the variable term.4x - 20Factored expression: EUPHEMISM = a word/phrase intended tosoften an unpleasant, embarrassing, orharsh word/phrase.What does the following euphemismmean?The ruler's response to the threat was"armed intervention."A. The ruler handed out foreign aid.B. The ruler responded with war.C. The ruler responded with peace talks.. John McRighteous has a mass of 90kg. Calculate johns weight. add the expression (1/4x - 4 + 2y) + (2/5x + 5 - 4y) Two lines are _______ if and only if they lie in the same plane and intersect at right angles. James loves to run. This month he plans to run 25 times. If he runs 13 mileseach time he runs, how many total miles will James run? Write an equation andthen solve the problem, David has one watermelon that weights 1867g. He splits it in half, and weights one half. That half weights 755g. How much does the other one weight? What is the best description of how heat is transferred from deep in the earth to the surface?a. Conduction brings hot magma up through the mantle toward the crust, where it cools and sinks.b. Convection brings hot magma up through the mantle toward the crust, where it cools and sinks.c. Convection brings hot magma up from the core to the crust, where it cools and sinks.d. Conduction brings hot magma up from the core to the crust, where it cools and sinks. Determine what functions of communication is being used in the certain lines below.1. "Can you please teach me how to dougie?"2. "Let's have a small talk later at the Coffee Bean."3. "I truly believe in your capabilities."4. "You need to sleep before 12pm."5. "We know that cancer cannot destroy you."6. "Did you know that you're so beautiful?"7. "You are always in my prayers."8. "Finish your assignment first before you play."9. "No one can defeat your determination and perseverance10. "Will you be my jowa?" WHAT IS THE VOLUME OF A 5.71 G PLASTIC CUBE THAT HAS A DENSITY OF 1.15 G/CM3 DONT ANSWER i need to find out if it cant float or sink?! It is first down in a football game. Your team has the ball at your 25-yard marker, and the play is a successful run for 6 yards.Where does the ball end up? Where is the ball relative to where it started? Use the number line to find the answer.Enter the correct answers in the boxes. ANSWER NUMBER 1 AND 2 PLEASE PLEASE I WILL GIVE THE FIRST PERSON TO ANSWER BRAINLIEST Who is more closely related, lizards of the same ecomorph, or lizards that live on the same island? Which is greater 1.44 or 1.2544 *In two paragraphs, with examples and/or explanations,compare and contrast Risk Factors and Cumulative Risk. Please answer will mark BRAINELIST! discuss the separation of solid of different sizes HELP ME WIT IS PLZ ITS TURNED IN 10 MINUTES