When salt and water are combined, they form a salt or saline solution. How much ml of water must be added to 150 mL of an 80% saline solution to produce a 30% saline solution?

Answer:

400*4.5=1600+200=1800

1800-400=1400

d. The retail price of the bed is 1400 more that the wholesale price.

Answer:

11.3

Step-by-step explanation:

Pythagorean theorem is a^2+b^2=c^2

8^2+8^2=128

the square root of 128 is 11.3137085

then you round to the nearest tenth and get 11.3

Answer: y-2=2(x+1)

Step-by-step explanation: You get the point slope formula and simply put in the information given

Answer:

we get

Diameter of cloth,

= 36 inches + 6 inches + 6 inches

= 48 inches

Hence the rectangular shaped fabric should have atleast a length of 48 inches to cut out a perfect circle.

Answer:

[tex]s^2 = 0.01[/tex]

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

[tex]s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}[/tex]

First, we calculate the mean

[tex]\overline x = \frac{\sum x}{n}[/tex]

[tex]\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}[/tex]

[tex]\overline x = \frac{7.4}{4}[/tex]

[tex]\overline x = 1.85[/tex]

[tex]s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}[/tex] becomes

[tex]s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}[/tex]

[tex]s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}[/tex]

[tex]s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}[/tex]

[tex]s^2 = \frac{0.03}{3}[/tex]

[tex]s^2 = 0.01[/tex]

Hence, the variance is 0.01

Answer:

The answer are

(0,_4)

(2,6)

(3,11)

Answer:

buy a used better tuck with the 25400 inside of buying the truvk that is broke or thst you to repair

Step-by-step explanation:

jus buy the better truck.

Answer:

3.875 points

Step-by-step explanation:

15.5/4=3.875

Answer:

104

155

180

Step-by-step explanation:

an easy way is to solve what is in the parenthesis then multiply by the outside number

but if you need to use the distributive property:

1. 4 x (20 - -6)

(4 x 20) - (4 x -6) = 80 - -24 = 80 + 24 = 104

2. -5 x (24 - -7)

(-5 x 24) - (-5 x -7) = -120 - 35 = 155

3. 12 x (-30 + 45)

(12 x -30) + (12 x 45) = -360 + 540 = 180

Step-by-step explanation:

must calculate the number in ( ) first before calculate the number in [ ]

- - > +

+ + > +

+ - > -

- + > -

Answer:

SAS (side-angle-side)

Step-by-step explanation:

In the given picture, it is shown that the triangles have two congruent sides, and one congruent angle between them. The congruent sides are shown by the lines on the sides. The congruent angle is shown by the box outlining the angle (technically a box outlining the angle demonstrates that the angle is a right angle, either way, it proves the congruency).

Answer:

[tex]a = 2p[/tex]

Step-by-step explanation:

Given

[tex]Admission\ Fee = \$2[/tex] per person

Required

Represent as an equation

For 1 person, the admission fee is 2

For p people, the admission fee will be 2p.

Hence:

[tex]a = 2p[/tex]

Answer:

4

Step-by-step explanation:

You can determine the y-intercept by looking at the graph and see where the line intersects the y-axis at. Therefore, the y-intercept is 4

Answer:

I think maybe 3

Answer:

-0.9

Step-by-step explanation:

Answer:

x=-9/10 or -0.9

Step-by-step explanation:

You have to isolate the variable by dividing each side by factors that don't contain the variable. Hope this helped! :)

Answer:

Gabriela Can Make 6 Bows.

Step-by-step explanation:

30 ÷ 5 = 6

So Gabriela Has Enough Ribbon To Make 6 Bows.

Answer:

12

Step-by-step explanation:

Hope this helps! :D

Answer:The number, or

12 is the answer

Step-by-step explanation:3

x

+

4

=

5

x

−

20

3

x

+

4

−

3

x

+

20

=

5

x

−

20

−

3

x

+

20

24

=

2

x

24

2

=

2

x

2

x

=

12

Answer:

has one solution which is 2

Step-by-step explanation:

Answer:

answer to top question:  x = 3/17

answer to bottom question:  x = -1

Step-by-step explanation:

distribute first

5 + 4x - 6 + 8x = -5x + 2

combine like terms

-1 + 12x = -5x + 2

12x = -5x + 3

17x = 3

x = 3/17

5 - 4x + 6 + 8x = -5x + 2

4x + 11 = -5x + 2

9x + 11 = 2

9x = -9

x = -1

Answer:

x = - 7

Step-by-step explanation:

Given

- 3x + 7 = 28 ( subtract 7 from both sides )

- 3x = 21 ( divide both sides by - 3 )

x = - 7

Answer: x = −7

Step-by-step explanation:

Step 1: Subtract 7 from both sides.

Step 2: Divide both sides by -3.

Final Answer: x = −7

If I Helped, Please Mark Me As Brainliest, Have A Great Day :D

Answer: The answer in this photo thanks for a little quiz

The number of day it will be until Addison and Bert each have  read the same number of pages in total is 8 days.

In mathematics, an equation is a statement of equality between two expressions, indicated by the equals sign (=). Solutions to equations are the values for unknowns which, when substituted into the expression, make it true.

Given that, the book they're reading right now is 256 pages long.

Let the number of days be x.

Addison has read 102 pages so far and decides to read 16 pages every day until she finishes the book.

102+16x -------(i)

Bert has read 142 pages, and he plans to read 11 pages every day.

142+11x -------(ii)

Addison and Bert have each read the same number of pages in total.

So, (i)=(ii)

102+16x=142+11x

16x-11x=142-102

5x=40

x=8

Hence, the number of day it will be until Addison and Bert each have  read the same number of pages in total is 8 days.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ3

Answer:

2.45

Step-by-step explanation:

Change the picture

Answer:

[tex] x = \sqrt{6} [/tex]

Step-by-step explanation:

[tex] \cos \: 45 \degree = \frac{ \sqrt{3} }{x} \\ \\ \frac{1}{ \sqrt{2} } = \frac{ \sqrt{3} }{x} \\ \\ x = \sqrt{2} \times \sqrt{3} \\ \\ x = \sqrt{6} [/tex]

Answer:

5([tex]n^{9}[/tex]-n+1)

Step-by-step explanation:

I need help with this one too

Answer:

3.00

Step-by-step explanation:

Answer:

3917m

Step-by-step explanation:

We are given that

[tex]\theta=74^{\circ}[/tex]

[tex]h=3400 ft[/tex]

We have to find the shortest length of cable needed.

Let Base=x

We know that

[tex]tan\theta=\frac{Perpendicular\;side}{Base}[/tex]

Using the formula

[tex]tan74^{\circ}=\frac{3400}{x}[/tex]

[tex]x=\frac{3400}{tan74}=975m[/tex]

[tex]y=x+970=975+970=1945m[/tex]

Now, the length of cable needed

=[tex]\sqrt{(3400)^2+(1945)^2}[/tex]

=3917m

Hence, the shortest length of cable needed=3917m

Answer:

THe answer is a

Step-by-step explanation:

the answer is a

Answer:

The answer to the question is 540°

Step-by-step explanation:

The reason to the answer is:-

There is a formula which is (n - 2) × 180

n is the number of sides the shape has, and there is 5 sides so we subtract 5 - 2 = 3

Therefore, 3 × 180 = 540°

I hope this answer helps!

Answer:

540°

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Step-by-step explanation:

Step 1: Define

We have a polygon with 5 sides (a pentagon)

n = 5

Step 2: Find Sum

Answer:

295275392

2864263924729

8639253925339

9739373027303

9283634828

293682537474(483

926338286328+

92632926282727

93739363825282

92362836273

9263935392628

9273926382639

926329638392

92639236926

92632863922

9273936