Liquid A has a density of 1.42 g/cm³
7 cm³ of liquid A is mixed with 125 cm of liquid B to make liquid C.
Liquid C has a density of 1.05 g/cm³.
Find the density of liquid B.
Give your answer correct to 2 decimal places.​

Answers

Answer 1

Step-by-step explanation:

if I understand correctly, then we are mixing 7 cm³ of liquid A with 125 cm³ of liquid B to a liquid C.

A has a density of 1.42 g/cm³.

B has a density of x g/cm³.

the resulting C has a density of 1.05 g/cm³.

the first thing we see is the quantity of C :

C = A + B = 7 + 125 = 132 cm³

what "comes in" must also "come out" again.

there is no mentioning of a chemical reaction, that might cause a change of volume or mass of the mixture.

so, the whole is exactly the sum of its ingredients.

now about mass and density :

as also the mass (g) of the resulting C must be the same as the sum of the masses of A and B, we multiply the density by the quantity of every liquid to get the mass (g). and that is how we get then the missing density of B :

7×1.42 + 125x = 1.05×(7+125)

9.94 + 125x = 1.05×132 = 138.6

125x = 128.66

x = 1.02928 ≈ 1.03 g/cm³


Related Questions

please help me asap ​

Answers

The goal of this is to get 24 by multiplying the p value with q. q can be any number, as long as it gets to 24 in this scenario.

So your first p value is 4, so you can take 24, and divide it by 4 to get your answer.

24/4=6 then you can check it by multiplying 6*4=24. That means 6 is your first q value.

This will work for the rest of them in that table, except for the 0, because no matter what you multiply that by you cannont get 24. Try it out for yourself, goodluck!

Answer:

q- 24/4=6

24/2=12

24/0=0

24/-2= -12

24/-4= -6

I need help again.(math.)

Answers

Answer:

dont really know

Step-by-step explanation:

Answer:

x+3

Step-by-step explanation:

If you subtract 3 from every y output, you get the x input.

Hope this helps :)

A camera has a listed price of $507.98 before tax. If the sales tax rate is 9.5%, find the total cost of the camera with sales tax included. Round your answer to the nearest cent, as necessary.
help pleasee :(((((

Answers

Answer:

$4825.80

Step-by-step explanation:

Help me ASAP PLEASE lateral surface area of the triangular prism :)

Answers

Answer:

15+15+40+40+40= 150

Step-by-step explanation:

Triangle x2]

(5 x 6) / 2

15

Rectangle x3]

(8 x 5)

40

only for a triangle, we divide by 2

Your answer is 150cm square.

But you do not have that option so I would pick the closes one if I were you. Have a good day.

What is the total wholes of 11/4. if you have the answer can you please tell me.

Answers

Answer:

Hello

Step-by-step explanation:

The answer is 2 3/4

Please help me out , these are a few questions and I need them urgently , don’t worry about the first, but to help. The answer to the first was
Jon = 1020
Bon = 2380
Please help, thanks.

Answers

Answer:

2. b) New amount = £6200

Same ratio → Jon : Bon = 3 : 7

6200 ÷ (3 + 7) = 620

⇒ 620 × 3 : 620 × 7

⇒ 1860 : 4340

Jon = £1860

Bon = £4340

3.

  Tom : Thom : Thomas

= 2 : 3 : 5

= 2x: 3x : 5x

Given Tom received £2400:

⇒ 2x = 2400

⇒ x = 1200

   2x: 3x : 5x

⇒ (2 × 1200) : (3 × 1200) : (5 × 1200)

⇒ 2400 : 3600 : 6000

Tom = £2400

Thom = £3600

Thomas = £6000

4.

  cats : dogs

= 1 : 5

= 1x : 5x

Given there are 8 cats:

⇒ 1x = 8

⇒ x = 8

   1x : 5x

⇒ (1 × 8) : (5 × 8)

⇒ 8 : 40

Therefore, there are 40 dogs

On Monday Mrs. Wise bought 3 lbs of apples at $4 per lb. On Tuesday, apples were on sale for 20% off so she bought another 5 lbs.

What is the price of apples on tuesday?

Answers

Answer:

The average price for all apples Mrs. Wise bought is $1.5 and this can be determined by using the unitary method.

Step-by-step explanation:

Given :

On Monday Mrs. Wise bought 3 lbs of apples at $4 per lb.

On Tuesday, apples were on sale for 20% off so she bought another 5 lbs.

If the price of 3 lbs apples is $4 then the price of 5 lbs apples is:

= $20/3

Now, determine the price of apples Mrs. Wise bought on Tuesday when apples are on 20% sale.

= $16/3

The average price is given by:

Average Price = $1.5

So, the average price for all apples Mrs. Wise bought is $1.5.

help me find the answer

Answers

Answer: 4

Step-by-step explanation:

When x=0, y=4

9 8/12 - 4 9/12

Simplest form please

Answers

59/12 if you want to simplify more 4 11/12

Answer:

1/3

Step-by-step explanation:

were going to subtract the wholes so what is 9-9=? it =0

2. Now we know we have 0 wholes. Next what is 8 -4=? 8 -4=4

3. Now our fraction is 4/12 now since 4 x 3 =12 then that means it's the first number besides 3 so what I mean about that is it is 1/3 but if the fraction were 8/12 then it would be 2/3 but it is 4/12 so it is 1/3.

4. That is our answer and were finished the final answer is 1/3 or 33.333

5.Hope this helps have a awesome day:)

A rectangle’s width is one-fourth of its length. Its area is 9 square units. The equation l(l) = 9 can be used to find l, the length of the rectangle. What is the length of the rectangle? 0. 75 units 1. 5 units 3 units 6 units.

Answers

By using the given condition, the length of the rectangle is 6 units.

It is given that

Area of the rectangle = 9 square units

Width of the rectangle = 1/4 of length

What is the area of a rectangle?

The area of a rectangle is the multiplication of its length to width.

Let us take the length of the rectangle as l

So, the width of the rectangle will be l/4

Area of the rectangle,

[tex]l*\frac{l}{4} = 9(given)[/tex]

[tex]l^{2} = 36\\l = 6[/tex]

Therefore, the length of the given rectangle is 6 units,

To get more about rectangles, visit:

https://brainly.com/question/25292087

Answer: 6 units or D.

Step-by-step explanation:

Move 3 units south and 3 units west. Your endpoint is (6, 7).
At what ordered pair did you begin?

Answers

Answer:

(9 10)

Step-by-step explanation:

If my vectors dont fail me, (9 10) - (6 7) = (3 3)

so its (9 10) for the answer

Write an equation that you can use to find the value of x.

Answers

Line CA is a straight line, meaning it adds up to 180°

Line BE splits the line into two supplementary angles, because when the two angles are added together they will equal 180°

Using the rule of supplementary angles, we can then make the equation 3x + 8x + 15 = 180

Now, simplify the equation by combining like terms

11x + 15 = 180

To solve, isolate x

11x + 15 = 180
11x = 165
x = 15

slope of the line that passes through a(9,7) and b(6,5)

Answers

Answer: 2/3

Step-by-step explanation:

Find the magnitude and direction of the
vectors:-
A) which displaces A(√3,1)to B(2√3,2)

Answers

Magnitude is distance between points

[tex]\\ \rm{:}\dashrightarrow AB=\sqrt{(2\sqrt{3}-\sqrt{3})^2+(2-1)^2}=\sqrt{3+1}=2units [/tex]

Direction is slope

[tex]\\ \rm{:}\dashrightarrow \alpha=tan^{-1}(\dfrac{2-1}{\sqrt{3}})[/tex]

[tex]\\ \rm{:}\dashrightarrow \alpha=tan^{-1}(\dfrac{1}{\sqrt{3}})[/tex]

[tex]\\ \rm{:}\dashrightarrow \alpha=\dfrac{\pi}{6}[/tex]

Please help me i really need it!

Answers

Answer:

1.Median= 79

2.Q3-Q1 = 82-75

= 4

i need help on number 13


Answers

The music cd cost $7.02 each and the the blank cd cost $1.44 each.

Maria is training for a triathlon. Yesterday, she rode her bike for eight and two-thirds miles in two-thirds of an hour. If Maria continues to rides at the same rate, how far will she ride in one hour?

HELP

Answers

Answer:

She will ride 13 miles in one hour

Step-by-step explanation:

(8 2/3) / (2/3) = x / 1....8 2/3 miles to 2/3 hr = x miles to 1 hr

cross multiply

(2/3)(x) = (8 2/3)(1)

2/3x = 26/3

x = 26/3 * 3/2

x = 26/2...which equals 13....she will ride 13 miles in 1 hr

What is the median of the data set? 5,6,7,8,9,10,11,12

Answers

Answer:

5+6+7+8+9+10+11+12=68

68÷8=8.5

Ram is 1 m 10 cm tall and Shyam is shorter by 20 cm. Find the height of Shyam ​

Answers

Shyam is 0.9 m

Step-by-step explanation:

10 cm = 10/100 m = 0.1 m

Now,

Ram = 1m + 0.1 m = 1.1 m

Now,

shyam = 1.1 m - 20 cm

= 1.1 m - 20/100 m

= 1.1 m - 0.2 m

= 0.9 m

Please help me


Several points appear on the number line, which shows numbers from 0 through 1. On the number line, point M represents 0.25. What fraction does point M also represent on the number line?

Answers
A= 1/5
B= 1/3
C= 1/4
D= 1/25

Answers

Answer:

1/4

Step-by-step explanation?

Keep in mind that fractions are technically division problems.

Divide 1 by 4 and you will end up with 0.25

Next time try to answer the problem on your own :)

Chad drew a scale drawing of the middle school. The gym, which is 81 feet long in real life, is 9 inches long in the drawing. What scale did Chad use?
1 inch :
feet

GIVING 28 POINTS THE RIGHT ANSWERS!

Answers

Answer:

108 : 1

Step-by-step explanation:

1 foot = 12 inches

81 foot = 81 * 12 = 972 inches

Scale factor = 81 feet  : 9 inches

                    = 972 : 9

                    = 972 ÷ 9  : 9÷9

                    = 108 : 1

Answer:

12x+4x-7y+45b+78a-44b+1a+1z+0d+1.1a+1.1a+2+2+2

Which of the following proves triangles are congruent

Answers

Answer:

SAA

Step-by-step explanation:

This is because we see the triangles share two equal congruent angles and the one side where they touch each other. We don't know anything about the other sides so it cannot be ASA.

The two right-angled triangles are congruent by RHS so the correct option is neither.

What is congruency?

We know two similar planer figures are congruent when we have sides or angles or both that are the same as the corresponding sides or angles or both.

From the given figure two triangles share a common side which is their height.

The two triangles have the same measure of angles opposite to their base,

Therefore the bases of the triangles are also congruent.

Now, we know if two right-angled triangles have the same height and base

their hypotenuse must also be the same.

Now, the hypotenuse and one of the legs of the triangle is congruent to another right-angled triangle they are congruent by RHS or right-angled hypotenuse.

learn more about congruency here :

https://brainly.com/question/7888063

#SPJ2

Chase made a scale drawing of a neighborhood park. The scale of the drawing was 1 millimeter : 8 meters. The volleyball court is 16 meters long in real life. How long is the volleyball court in the drawing?
what millimeters

Answers

Answer:

Length of the volleyball court in drawing = 2 mm

Step-by-step explanation:

8 meter  = 8 *1000 = 8000 mm

Scale factor = 1 : 8000

Length of the volleyball court in drawing = x

1 : 8000 :: x : 16000

[tex]\dfrac{1}{8000}=\dfrac{x}{16000}\\\\\\\dfrac{1}{8000}*16000=x\\\\[/tex]

x = 2 mm

the triangles ABC and MNP are similar to obtain sentences
the side homologous to the side AB is the side

Answers

Check the picture below.


In a certain triangle one side has a measure of 12 and another side has a measure of 18. If the triangle is isosceles, then which of
the following could be the measure of the third side?

Answers

Answer:

20 inches feet long

Step-by-step explanation:

add 12+8

- Gabby packs 25 boxes
in 2 hours. How many
boxes can she pack in
his 8-hour shift?
boxes

Answers

Answer:

Answer 100

Step-by-step explanation:

so if they can pack 25 boxes in 2 hours then you can do 8/2 which would equal four then 4*25 to get 100. You would do the division of 8 by two because you have 8 hours and it take 2 for 25 boxes.

Answer:

100 boxes

Step-by-step explanation:

25/2 to find how many boxes in one hour which is 12.5. Then, multiply that by 8 to get 100.

Please help with math !!!
Interpreting direct variation from a graph

Answers

The graph of the direct variation passes through the origin

The revolution per foot of travel is 0.2The slope of the graph is 5

The revolution per foot of travel

From the graph, we have the following points

(x.y) = (0,0) and (2,10)

Where:

x represents the number of revolutions

y represents the distance in feet

The revolution per foot of travel (r) is then calculated as:

[tex]r = \frac{x_2 -x_1}{y_2 -y_1}[/tex]

This gives

[tex]r = \frac{2 - 0}{10 - 0}[/tex]

[tex]r = 0.2[/tex]

This means that, the revolution per foot of travel is 0.2

The slope of the graph

This is the reciprocal of the revolution per foot of travel

In (a), we have:

[tex]r = 0.2[/tex]

So, the slope is:

[tex]Slope = \frac 1{0.2}[/tex]

[tex]Slope = 5[/tex]

Hence, the slope of the graph is 5

Read more about direct variation at:

https://brainly.com/question/6499629

What is the domain of the function y- +4?
-00 O 45x<00
O 0SX <0
O 45x<00

Answers

Answer:

I think its A. I might be wrong tho so sorry if i am

Step-by-step explanation:

Lmk if its correct :)

Will: 2*1*1*3 get tommyinit off of the screen explain the answer
refrence to somthing

Answers

Not sure what you meant... but your answer is 6.

2x1 is 2. 2x1 is 2 again. 2x3 is 6.

Helen has a new beaded necklace. 80% of the 75 beads on Helen's necklace are blue. How many blue beads are there on Helen's necklace?

Answers

Answer:

80% of 75 = 60

Step-by-step explanation:

first make 80% a decimal so 0.8 because 80/100 = 0.8

the multiply 0.8 by 75

this will give you 60

Therefore Helen's necklace has 60 blue beads

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