Three different hoses, each with its own pump, can be used to fill a swimming pool. If hose A is used by itself, the pool takes 6 h to fill. Is hose B is used by itself, the pool takes 3 h to fill. If hose C is used by itself, the pool takes 2 h to fill. If all three hoses are used at the same time, how long does the pool take to fill?

Answers

Answer 1
Minus 6 and 3, then minus it again with a 2. About 1 hour it will take to fill the pool. Hope this is the correct answer.
Answer 2
It will take the pool 1 hour to fill up.

Related Questions

Which is a correct definition for an obtuse angle?      A. an angle with a measure that equals the measure of a square corner   B. an angle with a measure that is less than the measure of a square corner   C. an angle with a measure that is greater than the measure of a square corner   D. an angle that looks like a line

Answers

the answer is for sure c.

It is C an angle that is greater than 90 degrees which is the same thing as a square corner

3x+2y+4+9y=
Plz answer

Answers

3x+2y+4+9y=


Combine like terms:
2y+9y=11y


I believe the answer is 3x+11y+4

(That is unless you know the numbers that y & x equals)

4a+15 whats the answer

Answers

A=3.75

15/4 = 3.75

4(3.75)=15

tom ate 1/4 of a pizza. He divided the leftover pizza into pieces each equal to 1/12 of the Original Pizza. After he gave some friends one piece each 1/6 of the Original Pizza remained. How many friends got pizza?

Answers

To make this easy let covert everything using a LCD.

The LCD of 1/4  1/12 and 1/6  is 12. This becomes...

Tom ate 3/12 of the pizza.
Leftover pizza = 9/12.
Slices were 1/12.
X friends got pizza.
Remaining pizza is 2/12.

if each friend got 1 piece(1/12)....
9/12(Leftovers) - 2/12(remaining)  = 7/12

So 7 friends got pizza.

2. [02.06] Which of the following is an equivalent form of the compound inequality −22 > −5x − 7 ≥ −3? (1 point)

−5x − 7 < −22 and −5x − 7 ≥ −3
−5x − 7 > −22 and −5x − 7 ≥ −3
−5x > −22 and −7 ≥ −3
−5x − 7 < −22 and −5x − 7 ≤ −3

Answers

Answer:

−5x − 7 < −22 and −5x − 7 ≥ −3 (the first one)

Step-by-step explanation:

22 is bigger than -5x and 7

-5x-7 is equal to or less than 22

and negative 3 is just negative 3

hope this helps!

The equivalent form of the compound inequality −22 > −5x − 7 ≥ −3 is -5x - 7 < -22 and -5x - 7 ≥ -3.

What is Inequality?

a relationship between two expressions or values that are not equal to each other is called 'inequality.

We can subtract 7 from all parts of the inequality to get:

-29 > -5x ≥ -10

Then we can divide all parts by -5 (and remember to reverse the direction of the inequality signs because we are dividing by a negative number) to get:

5.8 < x ≤ 2

So, an equivalent form of the compound inequality -22 > -5x - 7 ≥ -3 is:

-5x - 7 < -22 and -5x - 7 ≥ -3

Therefore, the equivalent form of the compound inequality −22 > −5x − 7 ≥ −3 is -5x - 7 < -22 and -5x - 7 ≥ -3.

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A line passes through the point (-6, 6) and (-6, 2). In two or more complete sentences, explain why it is not possible to write the equation of the given line in the traditional version of the point-slope form of a line

Answers

Try writing it in point-slope form and you will see why you have a problem.

slope m is equal to (y2-y1)/(x2-x1):

m = (y2-y1)/(x2-x1) = (2-6)/(-6 - -6) = -4/0

The denominator has a zero, so it is undefined.

Since the point-slope form requires "m" to be defined, you can't write the equation of the line using point-slope form.


the tallest tree a redwood name Hyperion measures 379 feet tall and the average NBA player is 80 inches. how many NBA players would it take to equal the height of the tree?

Answers

379*12 ÷ 80
4548 / 80
57 NBA players

Take note that we will always round up because it must surpass 379 in.

Hope this helps!
4(approx) it would take to reach height of the tree

Six people share 3/5 pound of peanuts equally. What fraction of a pound of peanuts does each person receive?


Answers

So first, I would convert 3/5 to 6/10, because it is equivalent and easier.

You can then just deduce that 1/10 would be 1/6 of 6/10, and that each person would therefore get 1/10 of a pound of peanuts.

You could also divide 3/5 by 6.

3/5 / 6 = 3/5 * 1/6

3/5 * 1/6 = 3/30

3/30 = 1/10

what is the value of b in the equation brainly (y^-9)^b=y^45?

a. -405
b. -5
c. 5
d. 405

Answers

Answer:

its -5 just took the test

Step-by-step explanation:


Answer:

The correct answer is option B, - 5

Step-by-step explanation:

Which is the best estimate of 54 times 68

Answers

54x68 estimated would be 50x70 so your answer would be 3,500

Help please. I don’t understand.

Answers

Multiply 270 × 7/100, which equals to 18.9, and then subtract 270 - 18.9, which gives you 251.1.

you live 3.67 miles from your grandparents and you are biking how do you solve this

Answers

To solve for revolutions, we will have to take the distance of the travel and divide that by the circumference of the wheel.

Distance of travel = 3.67 miles
Circumference of wheel = 82.6 inches

We have to convert the inches to miles. There are 63360 inches in one mile.

Circumference of wheel = 82.6 in * (1 mi/63360 in) = 0.0013 miles

Revolutions = Distance/Circumference = 63,538.46 revolutions

A vehicle uses 1 1/8 gallons of gasoline to travel 13 1/3 miles. At this rate , how many miles can the vehicle travel per gallon of gasoline? Show your work.

Answers

13 1/3 miles = 40/3 miles
1 1/8 gallons of gasoline  = 9/8 gallons of gasoline

(40/3) / (9/8)
= 40/3 x 8/9
= 320 /27
= 11 23/27 miles gallon of gasoline

Answer:

13 1/3 miles = 40/3 miles

Step-by-step explanation:

1 1/8 gallons of gasoline  = 9/8 gallons of gasoline

(40/3) / (9/8)

= 40/3 x 8/9

= 320 /27

= 11 23/27 miles gallon of gasoline

What is the x and y intercept for 4x-5y=-20

Answers

x intercept is when y = 0 so 4x = -20, x=-5 
y intercept when x = 0 so -5y = -20, y=4
i believe... y is 1 and the x is -1...correct me if im wrong...

You purchase a car using a 20,000 loan with a 5% interest rate suppose you pay the loan off after 4 years how much interest do you pay on your loan suppose you pay the loan off after 2 years how much interest do you save by paying the loan off sooner

Answers

In 4 years you pay interest of 4000 and if you finish pay the loan in two years you pay only 2000

On a shopping trip, Peter spent 1/3 of his money for a jacket and another $5 for a hat. If peter still had 1/2 of his money left, how much money did he have originally ??

Answers

He should have started with $30.
Let m be the amount of money he had

m - (1/3)m - 5 = (1/2)m
(2/3)m - 5 = (1/2)m
Subtract both sides by (1/2)m
(2/3 - 1/2)m - 5 = 0
(1/6)m - 5 = 0
Add both sides by 5
(1/6)m = 5
Multiply both sides by 6
m = 30

Peter started with 30 dollars.

Have an awesome day! :)

How would you use the Associative Property of Multiplication to compute 4x25x27 mentally.

Answers

(4 * 25) * 27
= 100 * 27
= 2,700
Think of 4x25 as quarters you get 100 multiply x27put 2 zeros at the end of 27 and you get the answer

Side a = 4
Side b = 3
Side c = 5
How would you find the sine of Angle B?

Divide 3 by 90 degrees.
Divide 5 by 3.
Divide 3 by 5.
Divide 3 by 4.

Answers

sin B = opp/hyp

sin B = 3/5

Is 19/7 irrational or rational??

Answers

rational. numbers are rational if they can be written as a fraction. In this case, it’s already written as a fraction.

Answer: It is a rational number.

Step-by-step explanation:

Sine we know that Rational numbers are those numbers which can be written in the form of p/q where, q is not equal to zero.

Here p denotes the numerator and q denotes the denominator.

So, According to question,

p = 19 and q = 7

Hence, it is written in p/q form.

Therefore, it is a rational number.

0.561 rounded to the nearest hundredth is what

Answers

0.56 4 and below round it down, 5 and above round it up.
0.561 rounded to the nearest hundredth is 0.56. Remember the 10th and 100th places in decimals, 10th being the place of the 5, and 100th being the place of the 6. When rounding, you only raise it if the number you are given is higher than 5. Because it's just a 1, in this case you can just take it off.

The radius of a circular Frisbee is 9.8 centimeters. Using rounding to the nearest whole number, what is an estimate for the circumference of this circle?
A. 50 cm B. 60 cm C. 65 cm D. 72 cm

Answers

The answer is B. 60 cm

Five cans for six dollars or eight cans for cans $10

Answers

if this is for a better deal if you made the prices the same so instead of 5 for six itd be 50 for $60 and 8 for $10 would be 48 for $60 obviously 5 for 6 is the best choice. thats just how i was taught i hoped this helps 

Final answer:

The question is about comparing the ratios or rates of the number of cans to cost. This mathematical analysis can help you determine which option offers the best value for money. The same method can be used to compare prices of different types of fruits.

Explanation:

The subject of the problem concerns the unit cost for purchasing cans or apples, bananas, grapes, and raspberries. It's essentially a comparison between two ratios or rates in mathematics. In this case, we have the ratio of cans to cost (either 5 cans for $6 or 8 cans for $10). For the first ratio, the price per can is $6 ÷ 5 cans = $1.2 per can. In the second scenario, the price per can is $10 ÷ 8 cans = $1.25 per can. Therefore, the option of 5 cans for $6 has a lower cost per can compared to the option of 8 cans for $10.

With the same method, you can compare prices of different types of fruits (apples, bananas, grapes, and raspberries), determining which fruit gives you the best value for your money based on the price per unit.

Through this kind of mathematical analysis, you can make informed decisions about value for money, which is a useful skill not only in performing school assignments but also in real-world situations such as grocery shopping.

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Determine the missing information in the paragraph proof.

Given: Line PQ contains points (w, v) and (x, z) and line P'Q' contains points (w + a, v + b) and (x + a, z + b). Lines PQ and P'Q' are parallel.

Prove: Parallel lines have the same slope.



Since slope is calculated using the formula , the slope of both lines is equivalent to ________. It is given that the lines are parallel, and we calculated that the slopes are the same. Therefore, parallel lines have the same slopes.




Answers

Slope = change in y / change in x
Slope of PQ = (z - v) / (x - w)

Slope of P'Q' = (z + b - (v + b)) / ((x + a) - (w + a))
Slope of P'Q' = (z - v) / (x - w)

The slopes of both lines are equivalent to 
(z - v) / (x - w)

Answer:

The answer should be A) v-z w-x


Step-by-step explanation:


In 1980, when the consumer price index (CPI) was 82.4, Ivan purchased a house for $71,900. Assuming that the price of houses increased at the same rate as the CPI from 1970 to 1980, approximately how much would the house have cost in 1970, when the CPI was 38.8?

Answers

x = (71,900)(38.8/32.4)= 33855.8252427184466= $33,900

Answer:

$33,856

Step-by-step explanation:

We have been given that in 1980, when the consumer price index (CPI) was 82.4, Ivan purchased a house for $71,900. The CPI in 1970 was 38.8. We are asked to find the cost of house in 1970.

[tex]\text{Past dollars in terms of recent dollars}=\text{Dollar amount}\times \text{Ending-period CPI}\div\text{ Beginning-period CPI}[/tex]

Substitute the given values:

[tex]\text{Cost of house in 1970}=\$71,900\times 38.8\div 82.4[/tex]

[tex]\text{Cost of house in 1970}=\$71,900\times 0.470873786407767[/tex]

[tex]\text{Cost of house in 1970}=\$33,855.825242718[/tex]

[tex]\text{Cost of house in 1970}\approx \$33,856[/tex]

Therefore, the cost of house in 1970 was $33,856.

What is the reciprocal of 7/12?

1. -12/7
2.-7/12
3.7/12
4.12/7

Someone told me you just have to flip the fraction so would that make this answer 12/7?

Answers

yes just flip it and youll have the answer 
The answer would be -12/7. You flip the fraction and the sign, so 12 would go on the top, 7 would go on the bottom, and the value would become negative. 

3.2 ÷ 10.261
Dividing decimal

Answers

The answer to this is 0.31186
3.2 divided by 10.261 equals 0.31186044245
 10.261 divided by 3.2 equals 3.2065625

Diane serves breakfast to two groups of children at a daycare center. One box of Oaties contains 12 cups of cereal. She needs 1/3 cup for each younger child and 3/4 for each older child. Today’s group includes 11 younger children and 10 older children. Is one box of oaties enough for everyone

Answers

no. It's over 12 by 1/6

Answer:

Yes, one box of Oaties is enough for everyone.

Explanation:

To find out if one box of Oaties is enough for everyone, let's calculate the total amount of cereal needed for each group and then sum them up.

For the younger children:

Number of younger children = 11

Amount of cereal needed for each younger child = 1/3 cup

Total cereal needed for younger children = Number of younger children × Amount of cereal needed for each younger child

Total cereal needed for younger children = 11 × 1/3 = 11/3 cups

For the older children:

Number of older children = 10

Amount of cereal needed for each older child = 3/4 cup

Total cereal needed for older children = Number of older children × Amount of cereal needed for each older child

Total cereal needed for older children = 10 × 3/4 = 30/4 = 7.5 cups

Now, let's sum up the total cereal needed for both groups:

Total cereal needed = Total cereal needed for younger children + Total cereal needed for older children

Total cereal needed = 11/3 + 7.5

To add fractions, we need a common denominator, which is 3 in this case:

Total cereal needed = (11/3) + (7.5 × 3/3)

Total cereal needed = (11/3) + (22.5/3)

Total cereal needed = (11 + 22.5) / 3

Total cereal needed = 33.5/3

Now, 33.5/3 cups of cereal are needed for everyone.

Since one box of Oaties contains 12 cups of cereal, let's check if it's enough:

1 box = 12 cups

So, 12 cups > 33.5/3 cups

Yes, one box of Oaties is enough for everyone.

Suppose there are 20 questions on a multiple-choice test. If 25% of the answers are choice B, how many of the answers are not choice B?

Answers

16 because 25% of 20 is 4 so 4 question were choice B. Then, I subtracted 20 by 4 and got 16. I hope that helped! :)
The rest of the answers would be 15 without answer choice B
because I did 20 times 0.25 which is 5 minus 5 from 20 and it is 15 
HOPE IT HELPED!!

between which two consecutive whole numbers is square root 95

Answers

Think:  81 and 100 are perfect squares.  95 is between these.

Thus, sqrt(95) is between sqrt(81) and sqrt(100), or between 9 and 10.

Answer:

81..........................................................................................

Step-by-step explanation:

A square kitchen floor has an area of 500 ft.² estimate the length of one wall to the nearest 10th of a foot

Answers

Final answer:

To estimate the length of one wall of the square kitchen, take the square root of the area of 500 square feet, which gives approximately 22.4 feet, rounded to the nearest tenth.

Explanation:

The student is asking how to estimate the length of one wall in a square kitchen that has an area of 500 square feet. To find the length of the wall, you need to take the square root of the area because the area of a square is equal to the side length squared. Using a calculator, the square root of 500 is approximately 22.36 feet. Therefore, the length of one wall of the square kitchen is approximately 22.4 feet, rounded to the nearest tenth of a foot.

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