In a chemistry lab, you have two vinegars. One is 8% acetic acid, and one is 9.5% acetic acid. You want to make 300mL of a vinegar with 9% acetic acid. How many milliliters of each vinegar do you need to mix together?

Answer:

546

Step-by-step explanation:

The lateral area is made up of 4 faces that do not includes the bases.

2 faces have dimensions 2.5 ft by 21 ft.

2 faces have dimensions 10.5 ft by 21 ft.

LA = 2 * 2.5 ft * 21 ft + 2 * 10.5 ft * 21 ft

LA = 105 ft^2 + 441 ft^2

LA = 546 ft^2

Answer: 546

Answer:

493.5

Step-by-step explanation:

to find the surface of the prisim you multiply the perimeter of the base by the height of the prism.

Answer:

A e f

Step-by-step explanation:

Hope this was helpful!!!

Answer:

-30

Step-by-step explanation:

Simply substitute the values in for the variables:

6(5) - 4(3)(5)   ~ parentheses indicate multiplication in this case

30 - 60 = -30

Answer:

n<2

Step-by-step explanation:

On the graph, You go left

Answer:

= 8.88

Step-by-step explanation:

£1 = 1.11 x £8 = 8.88 (euro)

Answer:

Step-by-step explanation:

The formula for compound annual interest is  A = P(1 + r)t  where  

A = Accumulated or final amount  (double $500 = $1000)  

P = Principal or original amount  ($500)  

r = Rate as a decimal (0.08)

t = Time in years  

1000 = 500(1 + 0.08)t

2 = 1.08t  

Take the logarithm of both sides.  I prefer the natural logarithm ln, but if you're more comfortable with base 10 logs they will work just as well  

ln(2) = ln(1.08t)  

ln(2) = t*ln(1.08)

t = ln(2)/ln(1.08)

t = 9.0065 years  

Check:  500*1.089.0065 = $1000

Answer:

12.66 cm

Step-by-step explanation:

Area of the circle = 125.8 Sq cm

[tex] \therefore \: \pi {r}^{2} = 125.8 \\ \\ \therefore \: 3.14 \times {r}^{2} = 125.8 \\ \\ {r}^{2} = \frac{125.8}{3.14} \\ \\ {r}^{2} = 40.0636943 \\ \\ {r} = \sqrt{40.0636943} \\ \\ r = 6.32958879 \\ \\ r \approx \: 6.33 \: cm \\ \\ d \: = 2r \\ \\ d = 2 \times 6.33 \\ \\ d = 12.66 \: cm \\ [/tex]

Diameter of the circle = 12.66 cm

Since, circumference of the circle touches each of the four sides of the square.

So, length of the sides of the square

= diameter of the circle.

= 12.66 cm

Another statement is, "Volume is directly proportional to the number of moles."

The volume increases as the number of moles increases. It does not depend on the sizes or the masses of the molecules.

V

∝

n

, where

V

is the volume, and

n

is the number of moles.

V

n

=

k

, where

k

is a proportionality constant.

We can rewrite this as

V

1

n

1

=

V

2

n

2

Equal volumes of hydrogen, oxygen, or carbon dioxide contain the same number of molecules.

STP is 0 °C and 1 bar.

One mole of an ideal gas occupies 22.71 L at STP. Thus, its molar volume at STP is 22.71 L

Example Problem

A 6.00 L sample at 25.0 °C and 2.00 atm contains 0.500 mol of gas. If we add 0.250 mol of gas at the same pressure and temperature, what is the final total volume of the gas?

Solution

The formula for Avogadro's law is:

V

1

n

1

=

V

2

n

2

V

1

=

6.00 L

;

n

1

=

0.500 mol

V

2

=

?

;

m

m

l

n

2

=

0.500 mol + 0.250 mol = 0.750 mol

V

2

=

V

1

×

n

2

n

1

V

2

=

6.00 L

×

0.750

mol

0.500

mol

=

9.00 L

Answer:

(0,-3)

Step-by-step explanation:

Answer:

27/7 or   3   6/7

Step-by-step explanation:

3/7 divided by 1/9 = 27/7

rounded to 3

Have a nice day

The 0.317 spray bottle did she ​us.

It is required to find how much of the bottle did she ​use.

A fraction having whole numbers for the numerator and denominator. A fraction is a number of the form: ab where a and b are integers and b≠0. It represents the division of two numbers.

Given:

We know that total =1

For a cleaning solution=3/7 of a spray bottle

Used=1/9

According to given question we have,

Subtract the fractions

3/7 - 1/9

Calculate the difference,

=20/63

=0.317

Therefore, the 0.317 spray bottle did she ​us.

Learn more about fraction here:

brainly.com/question/21342360

#SPJ2

Answer:

28

Step-by-step explanation:

6(2) + 7(3) - 5

12 + 21 -5

It's a good idea to get into the habit of using parenthses

when substituting numbers in for variables.

Since x = 2 and y = 3, 6x + 7y - 5 is 6(2) + 7(3) - 5.

Simplifying from here, we get 12 + 21 - 5 or 33 - 5 which is 28.

Answer:

3.02

x 10

-------

000

+302x

______

30.20

Answer:

C. y = |x| – 1

Step-by-step explanation:

Graph the absolute value using the vertex and a few selected points.

x

y

−

2

1

−

1

0

0

−

1

1

0

2

1

Answer: look at the picture

Step-by-step explanation: Hope this help :)

Answer:

2. Obtuse

3. Right

Step-by-step explanation:

Answer:

2 is obtuse 3 is right

Step-by-step explanation:

i've done this before

Answer:

m=8

hope this helps

have a good day :)

Step-by-step explanation:

2 + 6m +7=57

9+6m=57 add like terms

6m=48 subtract 9 from each side

m=8 divide by 6 on each side

Answer:

M=8

Step-by-step explanation:

First your going to subtract 2 from 7 and thats 5.

then your going to do:

6m+5=57

Then subtract 5 from 57 and thats 52

and divide 52 from 6 and thats 8.

Answer:

The two equations (representing value of variable Y) can be equated and converted into one single equation with X variable only

Step-by-step explanation:

If the starting of both the equation is from "Y=" then it means that whatever equation (having x variable) they are representing will be equal to each other as both the equation on one side are ultimately equal to Y

For example

Y = 3X + 5 ---- Eq (1)

Y = 7X +6  ---- Eq (2)

So both are equal

3X + 5 = 7X + 6

4X + 1 = 0

In this way the two equations (representing value of variable Y) can be equated and converted into one single equation with X variable only

Answer:cost for basket ball= $8 and

cost of baseball = $2

Step-by-step explanation:

Step 1

Let the cost of basket ball be represented as x

and cost of  baseball = y          such that

Four basketballs and six baseballs cost $44 will be expressed as

4x+ 6y= 44  --- eqn 1   also

Five basketballs and four baseballs costs $48 will be expressed as

5x+ 4y= 48--- eqn 2

Step 2

Having obtained two expressions we can now sole

4x+ 6y= 44  --- eqn 1

5x+ 4y= 48--- eqn 2

multiplying eqn 1 by 5 and eqn 2 by 4

20x+ 30y =220---- eqn 3

20x+ 16y=192-----eqn 4

subtracting equation 4 from 3   we now have

14y=28

y= 28/14

y=2 = $2

from equation 1

4x+ 6y= 44, putting the value of y=7 to find x

4x+ 6(2)= 44

4x+12= 44

4x= 44-12

4x=32

x= 32/4

x=8=$8

cost for basket ball= $8 and

cost of baseball = $2

Answer:

the answer is 0.89

Step-by-step:

the first boxes under 62 will be 56

the second box under 56 will be 63

the 3rd boxes will be will be 63

the very top boxes will be 0.89

Answer:

who got the maximum marks? it would have been apala she got the high mark

Answer:

-5, -3, 0, 4, 6

Step-by-step explanation:

Answer:

-5,-3,6,4,0

Step-by-step explanation:

I just did least to greatest

.......................................................

Answer:

If your trying to answer for X, here is how you do it.

For the equation '' Y = 10x + 20 '', isolate the variable 'X' by dividing each side by factors that don't contain the variable 'X', to get your answer:

X =  Y/10 − 2

Or

X = [tex]\frac{Y}{10}[/tex] − 2

For the other equation " Y = 20x + 10 ", it's the exact same thing. Isolate the variable 'X' by dividing each side by factors that don't contain the variable 'X', to get your answer:

X = Y/20 − 1/2

Or

X = [tex]\frac{Y}{20}[/tex] − [tex]\frac{1}{2}[/tex]

Id.k uhhhh

X = 30?

wee e wee e we

I dont got steps sorry :v

Answer:

you need to show the shape or somet or else I can't rlly help

Answer:

If the hypotenuse is 15 and one of the sides is 12, the answer is 9.

If these are the side lengths, the hypotenuse is square root of 369, which is about 19.21

Step-by-step explanation:

Answer:

yreflection in y-axis (x, y) → (-x, y)  **the sign of the x-coordinate changes, the y value stays the same**

A'(1, 4)

B'(5, 8)

C'(5, 4)

D'(4, 2)

Step-by-step explanation:

Answer:

A'(1, 4)

B'(5, 8)

C'(5, 4)

D'(4, 2)

Step-by-step explanation:

took the test