Three water pipes are used to fill up a swimming pool. The first pipe alone takes 8 hours to fill the pool, the second pipe alone takes 12 hours to fill the pool, and the third pipe alone takes 24 hours to fill the pool. If all three pipes are opened at the same time, how long will it take to fill the pool?

Answer:

I believe it's the second one because it makes sense.

Step-by-step explanation:

I hope this helps you.

Answer: 36

Step-by-step explanation:

Distamce from (6, 8) to (-3, 8) is 9.

Distance from (-3, 8) to (6, -4) is [tex]\sqrt{(-3-6)^{2}+(8-(-4))^{2}}=15[/tex]

Distance from (6, 8) to (6, -4) is 12.

So P = 9 + 15 + 12 = 36.

Answer:

yes

Step-by-step explanation:

a scalene triangle is a triangle with sides of different lengths

for example, a triangle with sides lengths of 5, 4, and 3 is a scalene triangle with a 90º angle

Answer:

5,250 ft2

Step-by-step explanation:

First you would multiply 35 by 50 which gives you 1,750. Then you multiply it by three because there are three feet in a yard. So your answer comes to 5,250 ft2.

Answer:

31

Step-by-step explanation:

Look at the picture

Answer:

df

Step-by-step explanation:

df

Answer:

7.5 , 10.5 , 12 , 16.5 , 28.5 are the sides of Larger polygon Step-by-step explanation: The sides of a polygon have lengths 5,7,8,11 and 19 cm Perimeter ...

Missing: left ‎off

Step-by-step explanation:

thats it

3x+5 + 2x+10 = 180

5x + 15 = 180

5x = 165

x = 165/5 = 33

angle ABD = angle CBE

angle CBE = 2x + 10 = 2(33) + 10 = 66+10 = 76

angle ABD = 76

angle DBE = angle ABC

angle ABC = 3x + 5 = 3(33)+5 = 99+5 = 104

angle DBE = 104

to confirm i didn't mess up

the sum of angles should be equal to 360

104*2 + 76*2 = 208 + 152 = 360

Answer:

A gum and a cracker

Step-by-step explanation:

She receive 3 of the same type of coin as change => the leftover change should be divisible by 3

If she buy a gum and a cracker, she would be leftover with 100 - (50+35) = 15 cents.

And that is divisible by 3, so we can conclude she bought a gum and a cracker.

Answer:

5

Step-by-step explanation:

4 + 7 + 5 + 4 + 8 + 2 = 30

30 ÷ 6 = 5

5

4+7+5+4+8+2=30

30 divided by 6=5

Answer:

92.4°

Step-by-step explanation:

The cost per person for 25 people is 15.20

An inverse variation is represented as:

k = xy

Where:

So, we have:

40 * 9.50 = 25 * y

Divide both sides by 25

y = 15.20

Hence, the cost per person for 25 people is 15.20

Read more about variation at:

https://brainly.com/question/6499629

#SPJ2

Answer:

[tex]\left(\dfrac{11}{4},-\dfrac{57}{8}\right)[/tex]

Step-by-step explanation:

[tex]f(x) = 2x^2 - 11x +8[/tex]

Quickest way is to differentiate the function, equate it to 0, solve for x, then substitute value of x into original function to find y:

[tex]f'(x)=4x-11[/tex]

         [tex]f'(x)=0[/tex]

[tex]\implies 4x-11=0[/tex]

[tex]\implies x = \dfrac{11}{4}[/tex]

[tex]f(\frac{11}{4}) = 2(\frac{11}{4})^2 - 11(\frac{11}{4}) +8=-\dfrac{57}{8}[/tex]

W=9

Hope this helps, here is the answer please mark Brainliest.

Answer:

7, -7 , 14 I'm not sure may true or false

Answer:

3

Step-by-step explanation:

1. Substitute 12 for a and 4 for b in the equation:  (2(12)) / (2(4))

2. Multiply:  24/8 = 3

Set the denominator as the highest number possible, 100.

[tex]\frac{400}{100}[/tex]

That is an improper fraction. Convert that to a mixed number.

[tex]\frac{400}{100} = 4[/tex]

Do the equation, 4 to the power of 2.

[tex]4^2 = 400[/tex]

Only for this case is 4 to the power of 2 accepted as a multidigit version of itself.

Therefore, your answer is 400.

Answer:

write a letter to your sister give her three reasons why you want to go to a day school

an absolute value equation is always a twin equation in disguise, so

[tex]6|x-7|=48\implies |x-7|=\cfrac{48}{6}\implies |x-7|=8\implies \pm(x-7)=8 \\\\[-0.35em] ~\dotfill\\\\ +(x-7)=8\implies \boxed{x=15} \\\\[-0.35em] ~\dotfill\\\\ -(x-7)=8\implies x-7=-8\implies \boxed{x=-1}[/tex]

Answer:

b = 35

Step-by-step explanation:

the sum of the 3 angles in a triangle = 180°

sum the 3 angles and equate to 180

2b - 13 + 2b - 11 + 2b - 6 = 180 , that is

6b - 30 = 180 ( add 30 to both sides )

6b = 210 ( divide both sides by 6 )

b = 35

Answer:

[tex](6, 9)[/tex]

Step-by-step explanation:

The point of intersection is also the solution to this system of equations.

We can solve this system using substitution:

[tex]x+y=15\\x+2x-3=15\\3x-3=15\\[/tex]

Add 3 to both sides:

[tex]3x=18[/tex]

Divide both sides by 3

[tex]x=6[/tex]

Then, substitute 6 for x to solve for y:

[tex]y=2x-3=2(6)-3=12-3=9[/tex]

Therefore the point of intersection is:

[tex](x, y)=(6, 9)[/tex]

Answer:

$5.37

Step-by-step explanation:

Given the information, it will be easier to start with the pennies, dimes, and nickels and end with the quarters.

50 * 0.14 = P

50 * 0.14 = 7 pennies

50 * 0.38 = D

50 * 0.38 = 19 dimes

6 + P = N

6 + 7 = 13 nickels

50 - (P + D + N) = Q

50 - (7 + 19 + 13) = 11 quarters

(7 * 0.01) + (19 * 0.1) + (13 * 0.05) + (11 * 0.25) = 5.37

In order to calculate the tangential speed of the orbiting object   Hannah need the distance of the orbiting object to Earth.

The tangential speed of an object is the linear component of the speed, which is moving in a circular path.

In terms of  the gravitation constant, the tangential speed can be given as,

[tex]v=\sqrt{\dfrac{Gm}{r}}[/tex]

Here, {G} is the gravitation constant, (m) is the mass and (r) is the radius.

Hannah has information about an object in circular orbit around Earth.

The mass of the earth is.

[tex]m_E=6. 0 \times10^{24} kg[/tex]

The value of gravitational constant is,

[tex]G=6. 67\times 10{-11}\rm Nm^2/kg^2[/tex]

The radius of the earth is,

[tex]r_E=6. 0 \times 10^6 \rm m[/tex]

Here, only the distance of the orbiting object to Earth is need to find the tangential speed of the object.

Hence, in order to calculate the tangential speed of the orbiting object   Hannah need the distance of the orbiting object to Earth.

Learn more about the tangential speed here;

https://brainly.com/question/4933588

Answer:

Step-by-step explanation:

First, we convert:

Result of conversion:

To get the rate, we must divide the number of cups by number of hours

  11.375 cups / 420 hours = 0.027 cups per hour = 0.03 cups per hour (approximated)

Hope that helps!

Answer:

0.31

Step-by-step explanation:

2/650 = 0.00307... x 100 = 0.31

Answer:

2 : 3

Step-by-step explanation:

We have 4 squares and 6 circles. We would like the ratio of squares to circles, so we divide 4 by 6:

4 / 6  ⇒  the ratio here would be 4: 6

We need to simplify this. Notice that both 4 and 6 are divisible by 2. So, we can divide both by 2:

4/2: 6/2  ⇒  2 : 3

2 and 3 don't share any factors other than 1, so we leave the ratio like this.

The answer is thus 2 : 3.

Answer:

B(8, -3)

you can consult

Step-by-step explanation:

A(6, -7); B( x, y); M(7;-5)

x=7×2-6=8

y=-5×2-(-7)=-3

Answer:

(8,-3)

Step-by-step explanation:

mid point formula for graph:

[tex](\frac{x_{1}+ x_{2} }{2} ,\frac{y_{1} +y_{2} }{2} )[/tex]

[tex](\frac{6+x}{2} ,\frac{-7\\+y}{2} )[/tex]

[tex]\frac{6+x}{2} =7[/tex]

[tex]x[/tex] is the x cordinate of B which will be

8

TO FIND Y:

[tex]\frac{-7\\+y}{2} =-5[/tex]

[tex]y=-3\\[/tex]

Answer:

Therefore D. 57 divided by 18 has a quotient greater than 3 as it has the highest remainder with quotient of 3. All others are equal or less than 3.

Explanation:

A. 32 divided by 15  - quotient: 2 remainder: 2  → 2.133

B. 45 divided by 22  -  quotient: 2 remainder: 1  →  2.045

C. 48 divided by 16  -  quotient: 3  →  3

D. 57 divided by 18  -  quotient: 3 remainder: 3  →  3.167

Hello.

[tex]\mathrm{y=x^{2} +6x+5}[/tex] is a quadratic function, because it has an [tex]\mathrm{x^{2} }[/tex] (x squared, or x times x) term.

Here's what linear functions look like:

[tex]\mathrm{y=mx+b}[/tex]

A graph of a linear function is a line.

Quadratic functions look like so:

[tex]\mathrm{y=ax^{2} +bx+c}[/tex]

A graph of a quadratic function is a parabola.

Therefore, the given function is a quadratic function.

I hope this helps.

Have a nice day.

[tex]\boxed{imperturbability}[/tex]

Answer:

the answer is 310

Step-by-step explanation: 5+5 = 10 and 10 x62= 620

620 divided by 2 = 310

Answer:

160

Step-by-step explanation:

5+5x62 divided by 2

5+(5x62) divided by 2

5+310 divided by 2

5+ 155=

160