Which set of diagrams shows a balanced chemical equation?

A : Diagram A


B : Diagram B


C : Diagram C


D : Diagram D

Answer:

w = 60

Step-by-step explanation:

Given

[tex]\frac{4w}{10}[/tex] + 28 = 52 ( subtract 28 from both sides )

[tex]\frac{4w}{10}[/tex] = 24

Multiply both sides by 10 to clear the fraction

4w = 240 ( divide both sides by 4 )

w = 60

Answer: About 9

Step-by-step explanation:

4/7 of 20 is about 11. 20-11 is 9

Answer:

the opposite number sentence is 10=7+3

The opposite number sentence 10 - 7 = 3 will be 10 = 3 + 7.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

The sentence is given below.

10 - 7 = 3

Simplify the equation, then the equation can be written as,

10 - 7 = 3

10 = 3 + 7

The opposite number sentence 10 - 7 = 3 will be 10 = 3 + 7.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Answer:

1a. 0< -4 false

1b. -3> or = -7 true

1c. 4<= -1/2 false

[tex]\frac{108}{132} = \frac{9}{11}[/tex] in simplest form.

Answer: y= 3/5x-3

Step-by-step explanation:

The cost for the phone and the case is 600 + 50 = $650

Multiply total cost by 7% to get the tax.

The tax would be 650 x 0.07 = $45.50

Add the tax to price of the phone and case to get total:

650 + 45.50 = $695.50

Answer

See below

Step-by-step explanation:

The given line has equation

[tex]5x - 2y =  - 6[/tex]

The slope intercept form is

[tex]y =  \frac{5}{2} x + 3[/tex]

The slope of this line is

[tex] m = \frac{5}{2} [/tex]

The line perpendicular to this line has slope

[tex] -  \frac{2}{5} [/tex]

If this line passes through (5,-4), the point-slope form is

[tex]y + 4 =  -  \frac{2}{5} (x  - 5)[/tex]

The slope-intercept form is

[tex]y =  -  \frac{2}{5} x- 2[/tex]

The standard form is

2x+5y=-10

Answer:

ummm the thousands im pretty sure

Step-by-step explanation:

Answer:

Leonard did make an error. He should have multiplied -7 by -5

Step-by-step explanation:

When you multiple a negative by a negative, it is a positive.

Answer:

65.2

Step-by-step explanation:

Add them together and divide the answer by 9

Answer:12

Step-by-step explanation:16/4=4, 8+4=12

Answer:

12

Step-by-step explanation:

8+w/4, when w=16

8+16/4

8+4=12

Answer:

2881

Step-by-step explanation:

Answer:

1 sq.unit = 9 sq.feet

Step-by-step explanation:

Length of shaded rectangle = 6 square on grid

We are given that Each square on the grid has a length of 1 unit.

So, Length of shaded rectangle = 6 units

Breadth of shaded rectangle = 4 square on grid = 4 units

Area of shaded rectangle = [tex]Length \times Breadth = 8 \times 4 = 32 units^2[/tex]

We are given that area of original square = 288 sq.feet

32 sq.unit = 288 sq.feet

1 sq.unit = [tex]\frac{288}{32} =9[/tex]

So, 1 sq.unit = 9 sq.feet

Hence Scale is 1 sq.unit = 9 sq.feet

Answer:

6meters

Step-by-step explanation:

Use simple proportion

2cm = 1m

12cm = ?

(12x1)/2 = 6m

Answer: 6m

Step-by-step explanation:

Answer:

3.9

Step-by-step explanation:

If m and 1.7 is 6.63, then m will be:

6.63 ÷ 1.70 = 3.9

Therefore the correct answer is 3.9

PLEASE DO MARK ME AS BRAINLIEST IF MY ANSWER IS HELPFUL ;)

Answer:

[tex]y=-55x+570\\[/tex]

Step-by-step explanation:

Ah im too lazy to type out everything

The equation for the relationship between the number of pages left and number of hours is y = 555x - 555 * 444.

The relationship between the number of pages left to read (y) and the number of hours (x) can be represented by a linear equation.

Naoya reads at a rate of 555 pages per hour, which means he reads 555 pages in one hour. In 444 hours, he read 555 * 444 pages.

So, the equation for the relationship between the number of pages left and the number of hours is:

y = 555x - 555 * 444

In this equation:

- y represents the number of pages left to read.

- x represents the number of hours.

- 555x represents the number of pages he reads in x hours (555 pages per hour).

- 555 * 444 represents the total number of pages he read in 444 hours.

Learn more about Equation here:

https://brainly.com/question/29657983

#SPJ3

Answer:

[tex]\large\boxed{(f\circ g)(2)=0}\\\boxed{(g\circ f)(2)=4}[/tex]

Step-by-step explanation:

[tex]f:\{(0,4), (1,2), \underline{(2,0)}, (3,2), (4,4)\}\\\\g:\{\underline{(0,4)}, (1,3), \underline{(2,2)}, (3,1), (4,0)\}\\\\(f\circ g)(x)=f\bigg(g(x)\bigg)\\\\g(2)=2\qquad/from\ (2,2)/\\f\bigg(g(2)\bigg)=f(2)=0\qquad/from\ (2,0)/\\\\(g\circ f)(x)=g\bigg(f(x)\bigg)\\\\f(2)=0\qquad/from\ (2,0)/\\g\bigg(f(2)\bigg)=g(0)=4\qquad/from\ (0,4)/[/tex]

Answer:What do you need help with

The equivalent expression is: B. y = ((z + 4x)) / 7

To find an equation equivalent to 4x + 7y = z, we want to isolate one of the variables (either x or y on one side of the equation.

Let's isolate x in terms of y and z:

Starting with 4x + 7y = z, subtract 7y from both sides:

4x = z - 7y

Now, divide both sides by 4 to solve for x:

[tex]\[x = \frac{z - 7y}{4}\][/tex]

Therefore, the correct choice is option B: [tex]\(x = \frac{z - 7y}{4}\)[/tex].

Complete question:

Which of the following is equivalent to the equation 4x+7y=z ?

A. x=4z-28y

B. x= ((z-7y))/4

C. y=7z+28x

D. y= ((z+4x))/7

Answer:

y = 3

Step-by-step explanation:

Given

3(2y + 5) = 33 ( divide both sides by the multiplier 3 )

2y + 5 = 11 ( subtract 5 from both sides )

2y = 6 ( divide both sides by 2 )

y = 3

Answer:

T'(2, - 5 )

Step-by-step explanation:

Under a rotation about the origin of 180°

a point (x, y ) → (- x, - y ), thus

T(- 2, 5 ) → T'(2, - 5 )

After a 180-degree rotation about the origin, the coordinates of point T' that is the image of T(-2,5) are (2,-5).

The coordinates of point T' after a rotation of 180 degrees about the origin are found by changing the signs of the original coordinates. The point T(-2,5) will thus be mapped to point T'(2,-5). This is because the 180-degree rotation reverses the direction of both the x and y coordinates. So, if the original point T has coordinates (x, y), then the rotated point T' will be (-x, -y).

Answer:

[tex]\large\boxed{x=\dfrac{1}{4}}[/tex]

Step-by-step explanation:

[tex]-18x-x=5x-6\\\\-19x=5x-6\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\-19x-5x=5x-5x-6\\\\-24x=-6\qquad\text{divide both sides by (-24)}\\\\\dfrac{-24x}{-24}=\dfrac{-6}{-24}\\\\x=\dfrac{6:6}{24:6}\\\\x=\dfrac{1}{4}[/tex]

Answer:

a. 276 vehicles

Step-by-step explanation:

7⁄10[13½] + 3⁄10[20] + 3v - 3 = [4][5280]

[tex] \frac{10323}{( \frac{7}{10})(13 \frac{1}{2}) + ( \frac{3}{10})(20) + 3} = v \\ \\ \frac{10323}{9 \frac{9}{20} + 6 + 3} = v \\ \\ \frac{10323}{9 \frac{9}{20} + 9} = v \\ \\ \frac{10323}{18 \frac{9}{20}} = v \\ \\ 559 \frac{21}{41} = v[/tex]

Now, we check to see which answer choice this quantity is closer to. Obviously, we will take 896 and 276:

-559 21⁄41 + 896 = 336 20⁄41

559 21⁄41 - 276 = 28221⁄41 → we take this number

* 559 21⁄41 is much more closer to 276 than it is to 896.

I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.

Answer:

1/2 is equal to 20/40

that is the answer

20/40

divide the fraction by 20

20/20=1

40/20=2

Answer: 1/2

Answer:

B

Step-by-step explanation:

The answer is "B", "Left-To-Right"

If your doing Apex or anything then this is the correct answer

Hopefully it helps :D

In mathematical operations, the direction can be from left to right or right to left, but in general, operations are performed according to the BODMAS/PEDMAS rule, which directs us from left to right.

In mathematical operations, the direction can be either from left to right or right to left, this largely depends on the specific operation field. However, in general, mathematics operations follow the BODMAS/PEDMAS rule, and the operations are performed from left to right.

The rule simply states: Brackets, Orders (exponential, square roots, etc.), Division and Multiplication (from left to right), Addition and Subtraction (from left to right). If you have, for example, a problem like 3 + 4 * 2, you would first perform the multiplication (4*2 = 8), then add the answer to 3, for a total of 11.

https://brainly.com/question/15840745

#SPJ3

Answer:

21 / 99

Step-by-step explanation:

You want to get rid of the decimals so

Let x = 0.21212121

then 100x = 21.21212121

then 100x - x = 21

99x = 21

x = 21 / 99

So 0.2121... is equal to 21 / 99

To write the repeating decimal 0.21212121... as a fraction, we can use the method of infinite geometric series. The fraction equivalent of the decimal is 21/99.

To write the repeating decimal 0.21212121... as a fraction, we can use the method of infinite geometric series. Let x = 0.21212121... . Multiplying both sides of the equation by 100 gives 100x = 21.21212121... . Subtracting the original equation from this, we get 99x = 21, which means x = 21/99. Therefore, the decimal 0.21212121... is equal to the fraction 21/99.

https://brainly.com/question/33179307

#SPJ2