I need help on this question

Answer:

Water is added to liquid isopropanol (a polar liquid) to form a solution of rubbing alcohol. Describe what happens on the molecular level as the water dissolves in the isopropanol.

Step-by-step explanation:

Answer:

x=125

Step-by-step explanation:

First identify what the varible means,

x = the cost of the labor per hour.

Next, write out an equation

3x + 66 = 441

Solve,

3x+66=441

Step 1: Subtract 66 from both sides.

3x+66−66=441−66

3x=375

Step 2: Divide both sides by 3.

3x/3 = 375/3

x=125

eu ainda n sei mas se alguém responde vai me ajudar tmb

Answer:

the difference is 2 minutes

Step-by-step explanation:

is that -4 1/2???? cause then it would be -2

Answer:

? what

Step-by-step explanation:

Answer:

what?......................

Answer:

hi

Step-by-step explanation:

Answer:C. 47

Step-by-step explanation:

Answer:

C. 47

Step-by-step explanation:

I did the calculations

Answer:

thee answer is 27

Step-by-step explanation:

As the first part was 27 and the second pARTR 27 NO MATHS NEED TO BE INCLUDED AS 27 IS THE CORRECT

Answer/Step-by-step explanation:

Volume = L*W*H

L = 10.4

W = 5

H = 8

10.4* 5 = 52

L*W = 52

52* 8 = 416

L*W*H = 416

Therefore,

ANSWER: 416

if needed in volume form 416^3

Answer:

n and y are incorrect

Step-by-step explanation:

Answer:

x = -5, and y = -6

Step-by-step explanation:

Suppose that we have two equations:

A = B

and

C = D

combining the equations means that we will do:

First we multiply both whole equations by constants:

k*(A = B) ---> k*A = k*B

j*(C = D) ----> j*C = j*D

And then we "add" them:

k*A + j*C = k*B + j*D

Now we have the equations:

-x  - y = 11

4*x - 5*y = 10

We want to add them in a given form that one of the variables cancels, so we can solve it for the other variable.

Then we can take the first equation:

-x  - y = 11

and multiply both sides by 4.

4*(-x - y = 11)

Then we get:

4*(-x - y) = 4*11

-4*x - 4*y = 44

Now we have the two equations:

-4*x - 4*y = 44

4*x - 5*y = 10

(here we can think that we multiplied the second equation by 1, then we have k = 4, and j = 1)

If we add them, we get:

(-4*x - 4*y) + (4*x - 5*y) = 10 + 44

-4*x - 4*y + 4*x - 5*y = 54

-9*y = 54

So we combined the equations and now ended with an equation that is really easy to solve for y.

y = 54/-9 = -6

Now that we know the value of y, we can simply replace it in one of the two equations to get the value of x.

-x - y = 11

-x - (-6) = 11

-x + 6 = 11

-x = 11 -6 = 5

-x = 5

x = -5

Then:

x = -5, and y = -6

Answer:

72 m3

Step-by-step explanation:

Just multiply every number, 6*3*4=72

Answer:

pretty sure.

Step-by-step explanation:

i believe in you.

Answer:

d≈7.99 cm

Step-by-step explanation:

Using the formulas

C=2πr

d=2r

Solving for d

d=C/π=25.1/π≈7.98958

Answer:

slope= 1/10x and the slope represents the increase of the rental cost after x miles driven.

Step-by-step explanation:

i hope this helps :)

Answer:

what are the statements?

6^10

Or

Answer 4

This is because 3+7 is 10

For future problems, exponents can be added and that’s how you get the answer :)

Answer:

6^10

Step-by-step explanation:

When u ve base that are the same(6) u can add the exponents (7+3 = 10)

And keep the base the same

Answer:

1.41421

Step-by-step explanation:

Answer:

10 apples

Step-by-step explanation:

We can write a ratio to solve

3 oranges     15 oranges

--------------- = -----------------

2 apples           x apples

Using cross products

3x = 2 * 15

3x = 30

Divide by 3 on each side

3x/3 = 30/3

x = 10

Answer:

He can expect to sell 10 apples

Answer:

64

Step-by-step explanation:

78 - 14

Answer:

D: 12

Step-by-step explanation:

1) So what I did at first was convert the fractions into decimals.

(Personally, this makes it easier, for me at least)

2) The problem states that for every 0.25 cups of broccoli, 0.60 grams of fiber are added as well to the mix. You can also convert this into a fraction. (It doesn't matter which one is the numerator/denominator, but for this example, I used the 0.25 cups of broccoli as the numerator.

3) Next step would be making another fraction. This time, the fraction is for the 5 cups of broccoli. Since we don't know the amount of grams for the fiber, we will replace it with an "x".

4) Realize, that |  [tex]\frac{0.25}{0.60} =\frac{5}{x}[/tex] |  To figure out the answer to this part, you can cross-multiply

5) Then at last, divide both sides by [tex]0.25[/tex] and you'll get:

Sorry this may have taken a long time; I just wanted to make sure everything was correct. Hope you do well on math, whether it's a test, or just homework. Good luck! :D

Answer:

D 144 in hope this helps you on your test

Answer:

t

Step-by-step explanation:

Answer: 55.4

Step-by-step explanation:

Remember soh cah toa

tangent = adjacent/opposite

angle is 18 degrees

Opposite is 18

Adjacent is x

So tangent of 18 degrees = 18/x

Use calculator to find tangent of 18 =0.3249

So 0.3249 = 18/x

Reciprocal both sides

3.0777 = x/18

Multiply both sides by 18

x = 55.3983

You may need to round

Answer: d

Step-by-step explanation: