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
Dafna1 [17]
3 years ago
10

A winery has a vat with two pipes leading to it. The inlet pipe can fill the vat in 5 ​hours, while the outlet pipe can empty it

in 8 hours. How long will it take to fill the vat if both pipes are left​ open?
Mathematics
1 answer:
Rashid [163]3 years ago
7 0

Answer:

                 time=40/3hours\approx 13.3hours

Step-by-step explanation:

The rates are additive: you can calculate the<em> inlet </em>rate and the <em>outlet</em> rate and add them algebraically, i.e. the inlet rate will be positive and the outlet rate will be negative.

<u>1. Inlet rate:</u>

1vat/5hours

<u />

<u>2. Outlet rate:</u>

1vat/8hours

<u>3. Net rate:</u>

            \text{Inlet rate - outlet rate}=1vat/5hours-1vat/8hours\\\\ \text{Net rate}=(8-5)vat/40hour=3vat/40hour=(3/40)vat/hour

<u>4. Time to fill the vat</u>

           rate=amount/time\implies time=amount/rate\\ \\ time=1vat/(3vat/40hour)

          time=40/3hours\approx 13.3hours

You might be interested in
The endpoints of are A(1, 4) and B(6, -1). If point C divides in the ratio 2 : 3, the coordinates of C are . If point D divides
koban [17]
The coordinates of C are (3, 2)

The coordinates of D are (4, 1)
8 0
3 years ago
Read 2 more answers
Your math teacher tells you that the next test is worth 100 points and contains 38 problems. Multiple-choice questions are worth
rusak2 [61]
If we assume that
x isthe number of multiple choice questions, and y is the number of word problems, we can write a system of equations like:
{ x + y = 38
{ 2x + 5y = 100

If we multiply the first equation by -2 we get:
{ -2x-2y = -76
{ 2x + 5y = 100

Now if we add both equations we get only equation with 1 unknown (y) :

3y = 24 ⇒ y = 8

Substituting the calculated value to the first equation we get:

x + 8 = 38 ⇒ x = 30

The solution:
{ x = 30
{ y = 8

means that:
The test had 30 multiple choice questions, and 8 word problems.
4 0
3 years ago
Find the slope of the line passing through the points A(6, –5) and B(–5, –7).
inna [77]

Answer:

-13/1

Step-by-step explanation:

y2 - y1 / x2 - x1 to find slope

6 0
3 years ago
Read 2 more answers
The blue segment below is a diameter of O. What is the length of the radius of the circle?
nexus9112 [7]

Answer: Option D :3.85 units.


Step-by-step explanation: Diameter is the longest chord of any circle . It is a straight line passing through the center of the circle and touches the circle at two points. Radius is a line  drawn from the center of circle to the circumference. Radius is half of diameter.In the given figure the blue line is diameter  .The diameter is the blue line which equals 7.7 units.Radius is half of diameter .Radius = 7.7÷2=3.85 units.

Option D is the right answer.


8 0
3 years ago
Read 2 more answers
HELP MATH QUESTION PRE CAL
Zarrin [17]
Use the pythagorean theorem. It would be set up as
a^2 + 3.7^2 = 4.0^2
8 0
2 years ago
Other questions:
  • Round .1325 to thousandths
    10·2 answers
  • The radius of circle B is 1/3 of the radius of circle A. The diameter of circle A is 18 cm. What is the radius of circle B?
    12·1 answer
  • I don’t know how to answer this
    15·1 answer
  • I am a decimal
    9·1 answer
  • I WILL GIVE BRAINLIST IF YOU HELP
    7·1 answer
  • Pls help me out plss
    9·1 answer
  • Benny went to his local zoo that featured 6 lion exhibits. If these lion exhibits make up 25% of the zoo's exhibits, then how ma
    14·1 answer
  • Helppp do any understand rhis ?
    11·2 answers
  • Triangle X Y Z is shown. The length of X Z is 12, the length of Y Z is 11, and the length of Y X is 6.
    6·2 answers
  • Can someone help me? With all the problems and with work
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!