1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MaRussiya [10]
3 years ago
13

One pipe fills a storage pool in 8 hours. A second pipe fills the same pool in 4 hours. When a third pipe is added and all three

are used to fill the​ pool, it takes only 2 hours. Find how long it takes the third pipe to do the job
Mathematics
1 answer:
steposvetlana [31]3 years ago
7 0
The first pipe fills 1/8 of a pool in one hr.
The second pipe fills 1/4 of a pool in one hr.

(1/8+1/4)2= 3/4 done by the first two pipes in 2 hours.
Therefore the last pipe must do 1 1/4 of the filling in 2 hours, which is 5/8 per hour.

5/8x=1
x=8/5

It takes the third pipe 1 hour and 36 minutes to fill it by itself.
You might be interested in
MZFEG=6x - 7 and mZFED=2x +41 , find the mZDEG
uranmaximum [27]

Answer:

this might be the answer

5 0
3 years ago
Please help! I have this question and one more I'm about to post, if you can answer them that would be most appreciated. These a
dimaraw [331]
D is the answer to this problem
4 0
3 years ago
On September 4, Nita Darmati signed a $5,350 promissory note to purchase furniture for her home office. The note had a simple in
snow_lady [41]
The maturity value is the principal value together with interest due.
.. mv = P +Prt
.. = 5350*(1 +0.085*120/360) . . . . . . year is 360 days for "ordinary interest"
.. ≈ 5501.58

The maturity value is $5501.58.
3 0
3 years ago
Which of the following are true?
Alex73 [517]
D : because this make so much since duh . && watch yuu get it right !
8 0
3 years ago
Triangle JKL has vertices J(2,5), K(1,1), and L(5,2). Triangle QNP has vertices Q(-4,4), N(-3,0), and P(-7,1). Is (triangle)JKL
Tems11 [23]

Answer:

Yes they are

Step-by-step explanation:

In the triangle JKL, the sides can be calculated as following:

  • J(2;5); K(1;1)

             => JK = \sqrt{(1-2)^{2} + (1-5)^{2}  } = \sqrt{(-1)^{2}+(-4)^{2}  } = \sqrt{1+16}=\sqrt{17}

  • J(2;5); L(5;2)

             => JL = \sqrt{(5-2)^{2} + (2-5)^{2}  } = \sqrt{3^{2}+(-3)^{2}  } = \sqrt{9+9}=\sqrt{18} = 3\sqrt{2}

  • K(1;1); L(5;2)

             =>  KL = \sqrt{(5-1)^{2} + (2-1)^{2}  } = \sqrt{4^{2}+1^{2}  } = \sqrt{1+16}=\sqrt{17}

In the triangle QNP, the sides can be calculate as following:

  • Q(-4;4); N(-3;0)

             => QN = \sqrt{[-3-(-4)]^{2} + (0-4)^{2}  } = \sqrt{1^{2}+(-4)^{2}  } = \sqrt{1+16}=\sqrt{17}

  • Q (-4;4); P(-7;1)

   => QP = \sqrt{[-7-(-4)]^{2} + (1-4)^{2}  } = \sqrt{(-3)^{2}+(-3)^{2}  } = \sqrt{9+9}=\sqrt{18} = 3\sqrt{2}

  • N(-3;0); P(-7;1)

             =>  NP = \sqrt{[-7-(-3)]^{2} + (1-0)^{2}  } = \sqrt{(-4)^{2}+1^{2}  } = \sqrt{16+1}=\sqrt{17}

It can be seen that QPN and JKL have: JK = QN; JL = QP; KL = NP

=> They are congruent triangles

7 0
3 years ago
Read 2 more answers
Other questions:
  • Kevin is starting a saltwater aquarium with 36 fish. He wants to start with 11 times as many damselfish as clown fish. How many
    15·1 answer
  • How do I solve 5-2(y+1)=21
    5·1 answer
  • Kim walks 347 mile in 3/10 of an hour what is her speed in miles per hour
    15·1 answer
  • f(x) = 20(1.5)x. Let your dependent variable in the function be y. Write the function that models the independent variable in te
    11·1 answer
  • A local hardware store sold 12 percent of its hammers on Saturday . If the hardware store sold 9 hammers on Saturday how many ha
    5·1 answer
  • Will someone PLEASE check my answers asap?? will mark a brainliest!!
    8·2 answers
  • 410 is 82% of what number
    6·1 answer
  • Help plz I have 6 minutes
    10·1 answer
  • Plsss asap right nooooow
    11·1 answer
  • PLS HELP, EXPLANATION IS GREATLY APPRECIATED!!!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!