17. A cistern has two inlets A and B which can fill it in 12 minutes and 15 minutes respectively.
An outlet C can empty the full cistern in 10 minutes. If all the three pipes are opened
together in the empty tank, how much time will they take to fill the tank completely?
Pls help
Answers
Answer:
20 minutes
Step-by-step explanation:
please like
.............
Related Questions
At how many hours of service do the repair services cost at the same time?
A) 3hr
B) 10hr
C) 5hr
D) 40hr
Answers
Hope this helps :) also could I get brainliest please
(5a²+4b³)³=
(2xy-1)³=
(3m-2n)=
(f+5)³=
Answers
Answer:
(5a²+4b³)³= 64b^9+240a^2b^6+300a^4b^3+125a^6
(2xy-1)³= 8x^3y^3−12x^2y^2+6xy−1
(3m-2n)= 0
(f+5)³= f^3+15f^2+75f+125
Step-by-step explanation:
(5a²+4b³)³ = [tex]64b^{9} + 240a^{2} b^{6} + 300a^{4} b^{3} + 125a^{6}[/tex]
(2xy-1)³ = [tex]8x^3y^3 - 12x^2y^2 + 6xy - 1[/tex]
(3m-2n) = 3m - 2n
(f+5)³ = [tex]f^3 + 15f^2 + 75f + 125[/tex]
como puedo borrar esta cuenta por fabor
Answers
Please help! ASAP I really need help
Answers
Answer:
(-1, -5)
Step-by-step explanation:
That is the intersection point of the two equations when put on a graph.
See picture
what is the formula of cylinder
Answers
Answer:
V = πr²h
Step-by-step explanation:
r = radius of circle
h = height of cylinder
Step-by-step explanation:
The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm. Substitute 8 for r and 15 for h in the formula V=πr2h . ... Therefore, the volume of the cylinder is about 3016 cubic centimeters.
What is the solution to the system of equations below?
y = 2x +8
-6x + 3y = 12
1) no solution
2) infinite solutions
3) (-1, 6)
4) (1/2, 9)
Answers
Rewrite each expression by combining like terms.
9tu - 15tu
PLEASE
Answers
Answer:
-6tu
Step-by-step explanation:
Hope this helps
Have a great day/night
Feel free to ask any questions
Which term is used to describe how light is reflected from a minerals surface
Answers
Answer:
Luster describes the reflection of light off a mineral's surface. Mineralogists have special terms to describe luster. Minerals that are opaque and shiny, such as pyrite, have a metallic luster.
Step-by-step explanation:
simplify -5 ¼ - (-7 ½)
Answers
Answer:
2 1/4
Step-by-step explanation:
-5 1/4- (-7 1/2)
to minus cancel each other out so it becomes a plus
-5 1/4 + 7 1/2
common dinomanater
-5 1/4 + 7 2/4
2 1/4
Eight angles of a nonagon measure 1389, 154º. 145°, 132°, 148°, 143,
147°and 150°. What is the measure of the ninth angle?
Answers
Answer:
103°
Step-by-step explanation:
The total angle in a nonagon is 1260. To get the missing angle, we add up all the given angle together and subtract it from 1260.
138 + 154º + 145° + 132° + 148° + 143 + 147 + 150 = 1157
1260 - 1157 = 103
Therefore, the missing angle is 103°
Find the length of the third side. If necessary, write in simplest radical
form.
8
17
Answers
Answer:
9
Step-by-step explanation:
so we know that its a right triangle and 8 and [tex]\sqrt{17}[/tex] are not the hypotenuse.
the equation for this is [tex]a^{2}[/tex]+[tex]b^{2}[/tex]=[tex]c^{2}[/tex] with c being the hypotenuse.
[tex]8^{2}[/tex]+[tex]\sqrt{17} ^{2}[/tex]=[tex]c^{2}[/tex]
64+17=[tex]c^{2}[/tex]
81=c
[tex]\sqrt{81}[/tex]=c
9=c
Answer:
Step-by-step explanation:
To make the use of Pythagoras's theorem clear
[tex]C^{2}[/tex] = [tex]A^{2}[/tex] + [tex]B^{2}[/tex]
where C is they hypotenuse or Hyp
A is one side often called the Adjacent side
B is the other side often called the Opposite side
when A = 8
and B = [tex]\sqrt{17}[/tex]
then
[tex]C^{2}[/tex] = [tex]8^{2}[/tex] + [tex]\sqrt{17} ^{2}[/tex]
[tex]C^{2}[/tex] = 64 + 17
[tex]C^{2}[/tex] = 81
C = [tex]\sqrt{81}[/tex]
C = 9
Christy is 3 years older than Jamie. The sum of their ages is 23. How old is Jackie?
Explain pls
Answers
christy is 13 and jamie is 10
PLZ SOMEONE ANSWERS THE MEASURE!!!
Answers
Answer:
150 is the answer.......
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the linear pair.
Applying it we get as,
==> PQR + RQS = 180°
hence angle PQR = 150°
Can someone help me please?
Answers
Answer:
ill try what's the problem???
Step-by-step explanation:
I give crown pls don't put a random answer :-((
Answers
Answer:
its 67...... ...........
Answer:
it's 67°
Step-by-step explanation:
48°+90°=(2x+4). reason is vertically opposite angles are equal
Samantha runs 3 miles every 2 days. How many days would it take her to run 24 miles
Answers
Answer:
16
Step-by-step explanation:
3 miles = 2 days
24 miles = ? days
24 / 3 = 8
8 x 2 = 16
Answer:
16 days
Step-by-step explanation:
[tex]\frac{3}{2}[/tex] to represent the relationship from miles to days
[tex]\frac{3}{2}[/tex]=[tex]\frac{24}{x}[/tex]
3 x 8 = 24
so do the same thing to 2
2 x 8 = 16 days
pls somebody i really need help.
Answers
Justin is starting his own laundry business. Justin thinks he will do a better job than his competitors, so he thinks he can charge $15.16 per hour. If he knows he will only be able to work 50 hours per week, how much money will he earn each week?
Answers
Answer:
$758 per week
Step-by-step explanation:
15.16 x 50 = 758
Answer:$758 per week
Step-by-step explanation:Answer:15.16 x 50 = 758
Mr Tan monthly salary is $2999.52. In order to fill up a membership application form, mr Tan has yo roping off his monthly salary to the nearest dollar. What should he write on the application form for his monthly salary?
Answers
Answer:
three thousand dollars
Step-by-step explanation:
you round up to 3000
can somebody help me with this please
Answers
Answer:
q=-14
Step-by-step explanation:
Turning off the water while brushing your Teeth saves 350 centilliters of water. How many liters of water can you save if you turn off the water the next 3 times you brush your teeth? (Round your answer to the nearest hundredth)
Answers
Answer:
1.1l
Step-by-step explanation:
350×3=1050cl
=1.05l
rounded to nearest hundredth=1.1l
x^2+2x-8=0 complete the square
Answers
Answer:
it should be x=2 or x=--4
1. Find the volume of a cube with a side of 9 cm.
2. Find the perimeter of a rectangle whose length is 4
cm and breadth is 3 cm.
3. Find the area of a square of side 11 m.
4. Find the area of a rectangle that is 14 m long and 5
m wide.
5. Find the perimeter of an equilateral triangle with
side 15 cm.
I'm in tension right now I am studying for exams and I'm tired it would be nice if you help me out!
Answers
Step-by-step explanation:
1. Given,
Side of the cube = 9 cm
Therefore, volume of the cube = side × side × side
= 9cm × 9cm × 9cm
[tex] = 729 {cm}^{3} (ans)[/tex]
2. Given,
Length of the rectangle = 4cm
Breadth of the rectangle = 3cm
Therefore, perimeter of the rectangle = 2(l+b)
= 2(4cm + 3cm) = 2 × 7cm = 14 cm (Ans)
3. Given,
Side of a square = 11 m
Therefore, area of the square = side × side
= 11 m × 11 m
[tex] \: = {121cm}^{2} (ans)[/tex]
4. Given,
Length of the rectangle = 14 m
Width of the rectangle = 5 m
Therefore, area of the rectangle = l × b
= 14 m × 5 m
[tex] = 70 {m}^{2} (ans)[/tex]
5. Given,
Side of the equilateral triangle = 15 cm
Therefore, perimeter of the triangle = 3 × side
= 3 × 15 cm = 45 cm (Ans)
ill give brainliest!! just please help!!
Answers
Answer:
x=4
Other stuff:
Don't if it is incorrect or if it was the answer. the image was blurry.
If the base angles of a trapezoid are congruent, what can be said about the diagonals of the trapezoid
Answers
9514 1404 393
Answer:
the diagonals are congruent
Step-by-step explanation:
If the base angles of a trapezoid are congruent, it is an isosceles trapezoid. It will be symmetrical about its center line. Each half of the trapezoid is identical (mirror image) to the other half. The diagonals are the same length.
x/10 - 4 = 5
find X
plsplsplsplsplsplsplspls
Answers
Answer:
90
Step-by-step explanation:
X/10-4=5
add 4 to both sides
X/10=9
mulitiple 10 to both sides
X=90
check
(90)/10-4=5
9-4=5
Answer:
90
Step-by-step explanation:
Can somebody plz help answer this math problem (only if u know how to do it) thx :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD!
Answers
Answer:
hour hand = 7.5 x 2 for the diameter. C = 2(pi)(15) = approx. 94 centimeters. Minute hand = 9.5 x 2 = 19, C = 2(pi)(19) = approx. 119 centimeters
Step-by-step explanation:
Solve the following story problem.
The perimeter of a rectangle is 60 inches. The length is four times the
width.
What are the length and width of the rectangle?
Define your variables.
X =
Equation 1
y =
Equation 2
What is the length?
what is the width?
Answers
Answer:
The perimeter of a rectangle is equal to 2L + 2W, where L = the length of the rectangle and W = the width of the rectangle. So, one equation is
2L + 2W = 60
From the info given in the problem, we also know that L = 4W. Therefore, we can use the Substitution Method to re-write the first equation as:
4W + 2W = 60
You should be able to solve this equation for W. Once you find W, you can then calculate L.
Step-by-step explanation:
What is the value of X?
Please hurry if you can!
Answers
Answer:
Step-by-step explanation:
By the Pythagorean Theorem
[tex]c^2=a^2+b^2\\ \\ c^2=60^2+32^2\\ \\ c^2=4624\\ \\ x=\sqrt{4624}\\ \\ x=68[/tex]
a^2 + b^2 = c^2
plug in the values:
60^2 + 32^2 = x^2
simplify:
3600 + 1024 = x^2
4624 = x^2
√4624 = x
68 = x
the answer is x = 68
Choose the missing step in the given solution to the inequality −2x − 14 > −4 + 3x.
−2x − 14 > −4 + 3x
−5x − 14 > −4
_____________
x < −2
A. −5x < 10
B. −5x > −18
C. −5x > 18
D. −5x > 10
Answers
Answer:
Step-by-step explanation:
-2x - 14 > -4 + 3x
subtract 3x from both sides
-5x - 14 > -4
add 14 to both sides
-5x > 10
divide both sides by -5
x < -2
The answer would be -5x > 10.
This is because our last inequality was -5x - 14 > -4 so we add 14 to both sides and it would look like this -5x (-14 + 14) > (-4 + 14) which would transition into our next inequality -5x > 10.
So therefore the answer would be -5x > 10.
