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
ANTONII [103]
3 years ago
12

A winery has a vat with two pipes leading to it. The inlet pipe can fill the vat in 3 hours, while the outlet pipe can empty it

in 7 hours. How long will it take to fill the vat if both pipes are left open
Mathematics
1 answer:
SashulF [63]3 years ago
6 0

Answer:

  5 1/4 hours

Step-by-step explanation:

The rate of filling is 1/3 vats per hour. The rate of emptying is 1/7 vats per hour, so the net rate of filling is ...

  (1/3) -(1/7) = 4/21 . . . . vats per hour

Then for filling one vat, it will take an amount of time that is the inverse of this:

  21/4 = 5 1/4 . . . hours per vat

If both pipes are left open, the vat will fill in 5 1/4 hours.

You might be interested in
Which situation is represented by the inequality? 3x + 5 > 2x + 15
Nina [5.8K]
<span>3x + 5 > 2x + 15
3x - 2x > 15 - 5
         x > 10

answer
x > 10</span>
7 0
3 years ago
SAT math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 114.
nadezda [96]

Hey there mate :)

Analysis :

401 = 515 - 114 = u - 6

And

173 = 515 - 3.114 = u - 36

=  \frac{p(u - 36 < u < u + 36) - p(u - 6 < u < u + 6)}{2}

=  \frac{99.73percent - 68.21percent}{2}

=  \frac{31.46percent}{2}

= {15.73percent}

Then, calculating,

u - 26 = 515 - 2 \times 114 = 287

And

u + 26 = 515 + 2 \times 114 = 743

Then,

The \: Range = (287,743)

Final Answers :-

<u>1</u><u>5</u><u>.</u><u>7</u><u>3</u><u> </u><u>%</u>

<u>(</u><u>2</u><u>8</u><u>7</u><u>,</u><u>7</u><u>4</u><u>3</u><u>)</u>

~Benjemin360

3 0
2 years ago
What’s the square root of 1700
leva [86]

Answer:

41.2310562562

Step-by-step explanation:

by use of calculator

8 0
3 years ago
Read 2 more answers
The school is 3.64 miles from Tonyas house and 1.29 miles from Jamal's house.
SpyIntel [72]

Answer:

2.35 miles

Step-by-step explanation:

5 0
2 years ago
Simplify the expression:<br> 2(3n+4)-2(2n+5)
inessss [21]
First use distributive property:
2(3n + 4) - 2(2n + 5)
6n + 8 - 4n - 10
Group like terms:
6n - 4n + 8 - 10
Add like terms:
2n - 2
4 0
2 years ago
Read 2 more answers
Other questions:
  • Pls answer this with an explanation if you can
    8·1 answer
  • What is the order of numbers from least to greatest?
    11·1 answer
  • Find the equation of the para bola that has zeros of x = -2 and x = 3 and a y-intercept of (0,-30)
    12·1 answer
  • The length of a rectangle is three times it’s width, the perimeter of the rectangle is 56cm , find the length and width
    8·1 answer
  • 6. Y(3.5, 1), Z(-4, 2.5)<br> Please help
    14·1 answer
  • Use SOH CAH TOA to find the missing side
    14·2 answers
  • How to find the slope from a graph ?Be very specific
    9·2 answers
  • Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation
    12·2 answers
  • Determine the type of triangle that is drawn below. ASAP PLZZ!!!!!
    9·1 answer
  • $250 invested for 5 years at 8% per annum
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!