for a science fair project javier is recording the amount of water that evaporate from a bucket in a month he creates a table like this i will give point for the best answer

week 1 2/16 inch

week 2 1/16 inch


week 3 3/16 inch

week 4 2/16 inch

how much water had evaported from the bucket at the end of week 2

what was the total amount of water that evaported in the four weeks

if javier orignally put 4 inches of water in the bucket how many inches of water were left after the experment was completed

Answer:

28 – 16 ÷ 8 – 4382224 = -4382198

Step-by-step explanation:

Answer:

Step-by-step explanation:

Simplifying

28 + 12x = 8x + -4

Reorder the terms:

28 + 12x = -4 + 8x

Solving

28 + 12x = -4 + 8x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8x' to each side of the equation.

28 + 12x + -8x = -4 + 8x + -8x

Combine like terms: 12x + -8x = 4x

28 + 4x = -4 + 8x + -8x

Combine like terms: 8x + -8x = 0

28 + 4x = -4 + 0

28 + 4x = -4

Add '-28' to each side of the equation.

28 + -28 + 4x = -4 + -28

Combine like terms: 28 + -28 = 0

0 + 4x = -4 + -28

4x = -4 + -28

Combine like terms: -4 + -28 = -32

4x = -32

Divide each side by '4'.

x = -8

Simplifying

x = -8

(A)  120 is 25% of 500.

(B) 25% of 120 is 30.

(C) 6 is 5 percent of 120

(D) 120 is 500 percent of 25

Percentage is a part of the whole number. It is denoted by % sign.

1 %= 1/100.

(A)

Let 120 is 25 % x,

125 = (25/100) x

x = 500

(B)

Let 25% of 120 is x,

(25/100) x 120  = x

x = 30

(C)

Let 6 is x percent of 120.

6= (x/100) 120

x = 5

(D)

Let 125 is x percent of 25.

125 = 25 (x/100)

x = 500

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The dividends per share on each class of stock for each of the four years for Seventy-Two Inc. are as follows:

                                            Year 1       Year 2        Year 3           Year 4

Distributed Dividends    $32,000    $40,000    $36,000        $36,000

Outstanding shares          60,000      60,000      60,000           60,000

Dividend per share           $0.53       $0.67          $0.60             $0.60

                                          Year 1       Year 2        Year 3           Year 4

Distributed Dividends    $0              $32,000     $44,000       $64,000

Outstanding shares        400,000    400,000     400,000       400,000

Dividend per share        $0              $0.08            $0.11              $0.16

                              3% Cumulative Preferred       Common Stock

Outstanding shares          60,000                        400,000

Par Value                            $20                              $25

Total value                       $1,200,000              $10,000,000

Annual dividend            $36,000 ($1,200,000 x 3%)

                                            Year 1       Year 2        Year 3           Year 4

Distributed Dividends    $32,000    $72,000    $80,000       $100,000

Cumulative Preferred      $32,000    $40,000    $36,000        $36,000

Common Stock                $0              $32,000    $44,000        $64,000

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On solving the provided question, we can say that F= The lifting force is 27135 0.003357*250*180*180 = F=27135, surface area

The total area that all of a 3D object's faces cover is the surface area. The surface area of a cube is its surface area, for instance, if we are trying to determine how much paint is needed to paint it. Always expressed in square units.

The entire surface of a three-dimensional shape is referred to as its surface area. A cuboid with six rectangular faces has a surface area equal to the sum of the areas of each face. Alternatively, you can label the cuboid's length, width, and height (l, w, and h), then calculate its surface area (SA) using the formula: SA=2lw+2lh+2hw.

F= k*a*v^2

a= 250

v=190

30300=k*250*{190^2}

k= 0.03357

F= 0.003357*250*180*180

F=27135

The lifting force is 27135

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Answer:

B and D

Step-by-step explanation:

A: 3x-27

B: 9x-27

C: 9x-21

D: 9x-27

E: 9x-3x

Answer:

Step-by-step explanation:

We know that the terms of the expression are divisible by 9. Let's factor them.

Now, let's verify all the options.

After reviewing all options, we can conclude that Option B and D are correct.

Irene has 49 Books, and Alejandro has 24 books.

Let's assume that Irene has x books, and Alejandro has y books. According to the given information, we can form the following equations:

1. Irene has twice as many books as Alejandro plus 1:

  x = 2y + 1

2. The total number of books between Irene and Alejandro is 73:

  x + y = 73

We can now solve this system of equations to find the values of x and y.

Substituting the value of x from equation (1) into equation (2), we have:

(2y + 1) + y = 73

3y + 1 = 73

3y = 72

y = 24

Now, we can substitute the value of y into equation (1) to find x:

x = 2(24) + 1

x = 49

Therefore, Irene has 49 books, and Alejandro has 24 books.

To verify our solution, we can check if the sum of their books equals 73:

49 + 24 = 7

So, our solution is correct.

In conclusion, Irene has 49 books, and Alejandro has 24 books.

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Answer:

B. xy(y - x) (y + x)

Step-by-step explanation:

Answer: 2.333333...

Step-by-step explanation:

If we apply rise over run, we see that it rises 3.5 spaces, and runs 1.5, which means that   \(m = \frac{rise}{run} = \frac{3.5}{1.5} = 2.33333...\)

The value of the given fraction in mixed numbers is 6, or 36/6.

A fraction is a portion of a whole or, more broadly, any number of equal pieces. In ordinary English, a fraction represents the number of pieces of a specific size, such as one-half, eight-fifths, or three-quarters. In mathematics, a fraction is used to represent a piece or part of a whole. It symbolizes the equal pieces of the whole. A fraction is made up of two parts: the numerator and the denominator. The top number is known as the numerator, while the bottom number is known as the denominator.

Here,

=81/6-45/6

=(81-45)/6

=36/6

=6

The value for given fraction in mixed number will be 6 that is 36/6.

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18+24+63=? işlemini yapman gerek sonra sonuçtan ?-63=? işlemini yapacaksın sonra o sonucu 100 e bölüp sonucu bulcan

We need to find the number of instructors that did not like whiteboards.

In order to do so, notice that from the 11 instructors who liked blackboards, 7 also liked whiteboards.

Thus, among the instructors who liked at least one of the two types of boards, the number of them who didn't like whiteboards is:

Also, there were some instructors among the whole group of 29 that didn't like any of the two boards. Thus, those ones didn't like whiteboards.

The following image illustrates this problem:

So, we need to find x and add it to the other 4 instructors that didn't like whiteboards.

We have:

Thus, another 3 instructors didn't like whiteboards.

Therefore, the total number of instructors who didn't like whiteboards is

Notice that we can find the same result in a faster way: since 22 instructors liked whiteboards from a total of 29 instructors, it means that 29 - 22 = 7 didn't like whiteboards.

Therefore, the answer is 7.

Mr. Romano's order of 48 lb of beef is false.

Mr. Romano's order of 16 lb of chicken is true.

The ratio of pounds of beef to pounds of chicken that Mr. Romano orders are 3: 2 is false.

The ratio of pounds of chicken to pounds of beef that Mr. Romano orders are 1:3 is false.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Number of people = 80

Number of pounds of chicken for 5 people = 1

Number of pounds of beef for 10 people = 3

The number of pounds of chicken for 80 people.

= 80/5

= 16 lb

The number of pounds of beef for 80 people.

= 80/10

= 8 lb

The ratio of pounds of beef to pounds of chicken.

= 8:16

= 1:2

The ratio of pounds of chicken to pounds of beef.

= 16:8

= 2:1

Thus,

The number of pounds of chicken for 80 people is 16 lb.

The number of pounds of beef for 80 people is 8 lb.

The ratio of pounds of beef to pounds of chicken is 1:2.

The ratio of pounds of chicken to pounds of beef is 2:1.

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Answer:

R;2 B;1 P;

Step-by-step explanation:

R is red there are 2 reds

B is blue there are 1 blues

P is purple there are 1 purples

Answer: 14

Step-by-step explanation:

Since they said find the mean

You are suppose to add up all the numbers then divide it by how many numbers are there.

Answer:

14

Step-by-step explanation:

You first add up all the number shown on the chart. Then you divide the sum by the number of values. 12+11+12+20+15 = 70. 70÷5= 14.

The given equation is

We need to put it in the form

Then at first, we will simplify the right side

Now, we will subtract 1 from both sides

The slope-intercept form is y = 4x + 3

Answer:

You have to show the question

Step-by-step explanation:

42 1/2 ( aka 85/2) as a percent is 4250%.

To convert a percentage to a fraction, we can write the percentage as a fraction with a denominator of 100 and then simplify.

42 1/2 % can be written as:

42 1/2 % = 42.5/100

To simplify this fraction, we can divide the numerator and denominator by their greatest common factor, which is 2.

42.5/100 = (42.5 ÷ 2) / (100 ÷ 2) = 21.25/50

Next, we can simplify this fraction by dividing both the numerator and denominator by their greatest common factor, which is 25.

21.25/50 = (21.25 ÷ 25) / (50 ÷ 25) = 17/40

Therefore, 42 1/2 % is equal to 17/40 as a fraction in its simplest form.

Brainliest?

Answer:

7

Step-by-step explanation:

7 times 8 =56

The resulting equation after multiplying the first equation by 2 and subtracting the second equation is:

-5y = -375

1. Given equations:

  - x + 3y = 350    (Equation 1)

  - 2x + 4y = 625   (Equation 2)

2. Multiply Equation 1 by 2:

  - 2(x + 3y) = 2(350)

  - 2x + 6y = 700    (Equation 3)

3. Subtract Equation 2 from Equation 3:

  - (2x + 6y) - (2x + 4y) = 700 - 625

  - 2x - 2x + 6y - 4y = 75

  - 2y = 75

4. Simplify Equation 4:

  -2y = 75

5. To isolate the variable y, divide both sides of Equation 5 by -2:

  y = 75 / -2

  y = -37.5

6. Therefore, the resulting equation is:

  -5y = -375

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The line of best fit for the set of data in this problem is given as follows:

y = 0.613x + 4.142.

To find the regression equation, which is also called called line of best fit or least squares regression equation, we need to insert the points (x,y) of the data-set in the calculator.

The points for this problem are given as follows:

(-2, 2.9), (-3.5, 2), (1.4, 4.8), (-4.2, 1.5), (0,4), (2.8, 6), (-1.5, 3.5).

Inserting these points into a calculator, the line of best fit is given as follows:

y = 0.613x + 4.142.

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Answer:

  (b)  y=(x+1)²−9

Step-by-step explanation:

You want the vertex form equation of the graphed parabola, which opens upward and has its vertex at (-1, -9).

The vertex form equation for a parabola with vertex (h, k) is ...

  y = (x -h)² +k

The vertex of the parabola shown is (h, k) = (-1, -9). Using these values in the equation gives ...

  y = (x +1)² -9

__

Additional comment

The equation may include a scale factor that multiplies the square. Here, the curve rises 1 unit for 1 unit either side of the vertex, so the scale factor is 1. (The rise at ±1 from the vertex is the scale factor.)

Steps: (1) read the vertex coordinates from the graph; (2) put those coordinates in the vertex form equation; (3) check to see that the vertical scale factor is 1.

Answer:

10

Step-by-step explanation:

\(\boxed{\textsf{If }y=x^n,\: \textsf{then }\dfrac{\text{d}y}{\text{d}x}=nx^{n-1}}\)

Given equation:

\(2y=x^3+2x^2\)

Isolate y by dividing both sides by 2:

\(\implies y=\dfrac{1}{2}x^3+x^2\)

Differentiate with respect to x:

\(\implies \dfrac{\text{d}y}{\text{d}x}=3 \cdot \dfrac{1}{2}x^{3-1}+2 \cdot x^{2-1}\)

\(\implies \dfrac{\text{d}y}{\text{d}x}=\dfrac{3}{2}x^2+2x\)

Finally, substitute x = 2 into the differentiated equation:

\(\begin{aligned} \implies \dfrac{\text{d}y}{\text{d}x} & =\dfrac{3}{2}(2)^2+2(2)\\\\ & = \dfrac{3}{2}(4)+4\\\\ & = \dfrac{12}{2}+4\\\\ & = 6+4\\\\ & = 10\end{aligned}\)

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Answer:

2189.25

5/4= 1.25

36-1.25 = 34.75

7/4= 1.75

36 X 1.75= 63

34.75 X 63 = 2189.25

After evaluating the limit we have came to find that the limit of       \(\lim_{x\rightarrow 1 }\frac{x-2}{x^2-10x + 25}\) as x approaches 1 is −0.0625

In mathematics, a limit is the value that a function, sequence, or index approaches as an input or as an index approaches a specific value. Limits are crucial to calculus and mathematical analysis and are necessary for the definitions of continuity, derivatives, and integrals.

The idea of a limit of a sequence is further generalized to include the idea of a limit of a topological network, in addition to sharing a connection with the category theory concepts of limit and direct limit.

A limit of a function is typically expressed in formulas as

\({\displaystyle \lim _{x\to c}f(x)=L,}\)

To find the limit

⇒ \(\lim_{x\rightarrow 1 }\frac{x-2}{x^2-10x + 25}\)

Evalúe 2 as x

⇒ \(\frac{1-2}{1^2-10(1) + 25}\)

⇒ \(\frac{-1}{-9 + 25}\)

⇒ \(\frac{-1}{16}\)

⇒−0.0625

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Answer:

the answer for this problem is 1 +×

Step-by-step explanation:

you must frame the equation with a number x

after that you have to translate the x into the equation and it can be written as

1×(1× ×)=1+×