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
sdas [7]
3 years ago
8

Beakers X and Y contain some water. If 50 ml of water is transferred from Beaker X

Mathematics
1 answer:
eduard3 years ago
4 0

Answer:

140 ml

Step-by-step explanation:

Let x be the amount of water in Beaker X and y be the amount of water in Beaker Y.

<u>Then we get following equations:</u>

<u>First part</u>

  • x - 50 = 3/7(y + 50)
  • 7x -350 = 3y + 150
  • 7x = 3y + 500

<u>Second part</u>

  • x + 100 = 4(y - 100)
  • x + 100 = 4y - 400
  • x = 4y - 500

<u>Substitute x in first equation:</u>

  • 7(4y - 500) = 3y + 500
  • 28y - 3500 = 3y + 500
  • 28y - 3y = 500 + 3500
  • 25y = 4000
  • y = 4000/25
  • y = 160 ml

<u>Then finding x:</u>

  • x = 4*160 - 500
  • x = 640 - 500
  • x = 140 ml

Initial amount of water in Beaker X is 140 ml, in Beaker Y is 160 ml

You might be interested in
Interpret parts of an expression, such as terms, factors, and coefficients
Temka [501]
<span>Expression- arithmetic or algebraic expression (ex, 12, 5 + 3x)
Terms- number of independent items in an expression
Coefficient- number or constant multiplied by a variable (ex. 3x....3 is coefficient)

Equivalent expression- two or more expressions with the same numerical value</span>
3 0
3 years ago
What is the ratio for markers to pencils?
Contact [7]

Answer:

3:5

The ratio of pens:pencils is 3:5.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which equation matches the graph y=-1x+3 , y=1x, y1x+3, y=-1x can you guys tell me which equation matches the graph with explana
Y_Kistochka [10]

Answer:

y = 1.x + 3

Step-by-step explanation:

Let the equation of the line is,

y = mx + b

Here, m = slope of the line

b = y-intercept

Slope of a line passing through two points (x_1,y_1) and (x_2,y_2) is given by,

m = \frac{y_2-y_1}{x_2-x_1}

Since, y-intercept and x-intercepts are equal,

Let the given line passes through (0, 3) and (-3, 0),

Slope of the line (m) = \frac{3-0}{0+3} = 1

y-intercept of the line 'b' = 3

Equation of the line will be,

y = 1.x + 3

8 0
3 years ago
Juan can download new songs for $1.29 each. Write an equation to show how many songs he can download for $10.00.
Triss [41]

Answer:  The correct option is

(A) 1.29x=10.

Step-by-step explanation:  Given that Juan can download new songs for $1.29 each.

We are to write an equation to show how many songs he can download for $10.00.

Let x represents the number of songs that Juan can download for $10.00.

Then, according to the given information, the equation can be written as follows :

1.29\times x=10\\\\\Rightarrow 1.29x=10.

Thus, the required equation is 1.29x=10.

Option (A) is CORRECT.

4 0
3 years ago
Jimmys school is selling tickets to annual dance competition. On the first day of tickets sales the school sold 12 adult tickets
Nastasia [14]
Adult - $4
child - $9 

4 0
3 years ago
Other questions:
  • Select the correct answer. A company that packages cold cuts needs to transport the packaged meat to the supermarket. It will co
    11·2 answers
  • C is 8 more than half than n
    11·1 answer
  • Jack can make 6 paper boat canoes in 15 minutes. At that rate, how many paper boat canoes can he make in 40 minutes?
    15·2 answers
  • The following function represents the value of a house after x years: f(x) = 242,000(0.96)x What does 0.96 represent?
    13·1 answer
  • What is 522,000 rounded to the nearest tenth.
    11·1 answer
  • Find the area of rectangle ABCD
    8·1 answer
  • An elephant’s weight starts at 25 kilograms
    10·2 answers
  • Complete the area model to identify the factored
    12·1 answer
  • Evaluate the expression ​
    13·1 answer
  • Find the area of this circle. Use 3 for a.A = 7r2=11 in[?] in?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!