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 equation best matches the graph shown below?
Naily [24]

Answer:

y=0.5(x+6)(x+5)

Step-by-step explanation:

Since the parabola goes upwards as it expands from the vertex, the "a" value is definitely positive so the answer must be either the top-left or bottom-right. Next, use the roots to find the final answer. The roots are on the left side of the y-axis which indicates that they are negative. Now you know that the answer is the bottom-right answer because if both roots are negative, then the expressions must include addition to create 0 which is the y-value at the bases.

5 0
3 years ago
Number closest to 87 square root?
Serga [27]
9 i’m pretty sure bc if u do the square root of 87 and round it to the nearest whole number u get 9
6 0
3 years ago
Taylor wants to read 2 books. One book has 232 pages and the other has 184 pages. She needs to return the books to the library i
dalvyx [7]

i think you add 232 and 184 then divide by 13.

Hope this helps!


5 0
4 years ago
URGENT NEED IMMEDIATE SUPPORT WILLING TO GIVE BRAINLY
frozen [14]

4 hours for 18

7 hours for 25.50

Difference in hours: 7-4 = 3

Difference in cost: 25.50 - 18 = 7.50

7.50 / 3 = 2.50

A. They charge 2.50 per hour.

B. 2.50 x 4 = 10

18 - 10 = 8

The flat fee is 8 dollars

C. 8 + (2 x 2.50) = 13 dollars

8 0
3 years ago
The length of a rectangle is x feet. Its width is (x-7) feet. Draw and label a rectangle to represent this situation. Then write
a_sh-v [17]

Answer:

Perimeter of rectangle:

(4x - 14)\text{ feet}            

Step-by-step explanation:

We are given the following in the question:

Length of rectangle:

x\text{ feet}

Width of rectangle:

(x-7)\text{ feet}

Perimeter of rectangle:

2\times \text{(Length + Width)}

Expressions to calculate perimeter

1. ~2((x) + (x - 7))\text{ feet}\\2.~2(2x-7)\text{ feet}\\3.~ 4x-14\text{ feet}

The attached image shows the image of the rectangle.

3 0
3 years ago
Other questions:
  • Describe the correct the error in finding the area of the triangle
    12·1 answer
  • Together, teammates Pedro and Ricky got 2673 base hits last season. Pedro had 275 more hits than Ricky. How many hits did each p
    10·1 answer
  • What is the solution to 4log4(x+8)=4^2​
    8·1 answer
  • Select all the values that belong to the solution set of 9 ≤ 6 - y. 0 3 -3 -1 -6 6 -4
    12·1 answer
  • The Millers plan on retiring soon. When they were first married they purchased 1,000 shares in a mutual fund that was at that ti
    12·1 answer
  • A season has96 home games. If you purchase a season ticket in the bleacher section, what is the cost per game,in dollars, for th
    10·1 answer
  • Don't know this please help me
    7·1 answer
  • Solve for x. -14 - x = 14
    14·2 answers
  • Find the value of the variable x (2x+12) and 8x-18
    14·2 answers
  • Least to greatest 4, |-2|,3,|5|,-1 helppppppl
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!