HELP Solve for x. x/2≥4

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Here's your solution :

[tex] \qquad \sf  \dashrightarrow \: \cfrac{r + 6}{3r - 6} + \dfrac{r + 1}{3r - 6} [/tex]

[ since the denominator is same, we can just add the numerators ]

[tex] \qquad \sf  \dashrightarrow \: \cfrac{r + 6 + r + 1}{3r - 6} [/tex]

[tex] \qquad \sf  \dashrightarrow \: \cfrac{2r + 7}{3r - 6} [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{6}{x - 1} - \dfrac{5x}{4} [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{6(4) - 5x(x - 1)}{4(x - 1)} [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{24- 5x {}^{2} + 5x}{4x - 4} [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{2x}{5x + 4} + \dfrac{6x}{2x + 3} [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{2x(2x + 3) + 6x(5x + 4)}{(5x + 4)(2x + 3)} [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{4 {x}^{2} + 6x+ 30 {x}^{2} + 24x}{10 {x}^{2} + 15x + 8x + 12} [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{34 {x}^{2} + 30x}{10 {x}^{2} + 23 {x}^{} +12 }[/tex]

Answer:

a score of 100 is required

Step-by-step explanation:

the average is calculated as

average = [tex]\frac{sum}{count}[/tex]

given her average for 4 subjects is 80 , then

[tex]\frac{sum}{4}[/tex] = 80 ( multiply both sides by 4 to clear the fraction )

sum = 320

let x be the score required to raise average to 84 , then

[tex]\frac{320+x}{5}[/tex] = 84 ( multiply both sides by 5 )

320 + x = 420 ( subtract 320 from both sides )

x = 100

she requires to score 100 in her fifth subject

Answer: she needs score 100 in the fifth subject.

Step-by-step explanation:

Let a subject is nₓ

Hence,

[tex]\displaystyle\\\frac{n_1+n_2+n_3+n_4}{4} =80\\[/tex]

Multiply both parts of the equation by 4:

[tex]n_1+n_2+n_3+n_4=(80)(4)\\n_1+n_2+n_3+n_4=320[/tex]

[tex]\displaystyle\\\frac{n_1+n_2+n_3+n_4+n_5}{5}=84[/tex]

Multiply both parts of the equation by 5:

[tex]n_1+n_2+n_3+n_4+n_5=(84)(5)\\(n_1+n_2+n_3+n_4)+n_5=420\\320+n_5=420\\320+n_5-320=420-320\\n_5=100[/tex]

Answer:

What is the maximum rectangular area that can be enclosed by 460 ft of fencing?

Step-by-step explanation:

What is the maximum rectangular area that can be enclosed by 460 ft of fencing?What is the maximum rectangular area that can be enclosed by 460 ft of fencing?

The given statement exists true. If the measures of the base angles of an isosceles triangle are integers, then the sum of those angles is 2 times that integer, so the sum is an even number. The three angles added together must add to 180.

An isosceles triangle in geometry is one with at least two equal-length sides. It can be stated as having exactly two equal-length sides or at least two equal-length sides, with the latter definition containing the equilateral triangle as an exception.

The characteristics of an isosceles triangle are as follows: There is an agreement between two sides. The base of an isosceles triangle refers to the third side of the triangle, which is unequal to the other two sides. The two angles that are opposite the equal sides line up perfectly.

If the measures of the base angles of an isosceles triangle are integers, then the sum of those angles is 2 times that integer, so the sum is an even number. The three angles added together must add to 180.

An even number plus an odd number will be an odd number, and 180 exists always even.

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The number of kilometers are 1,3.5,0.5,0.075,0.001.

Meters are 1000,3500,500,75,1.

The number of meters is x.

The number of kilometers is y.

kilometer = 1/1000×meter

y = 1/1000×x

The units of length and distance are meters and kilometers, respectively. The kilometer, or 1,000 meters, serves as the unit of distance measurement in the metric system. Therefore, one meter is equivalent to a thousandth of a kilometer.

A meter is denoted by the letter m, whereas a kilometer is denoted by the letter km. The default unit of length measurement in the metric system. Between the length of a ruler and the spacing between objects in a room, meters are used to measure everything.

Therefore the number of kilometers are 1,3.5,0.5,0.075,0.001.

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Answer:

x = -1

Step-by-step explanation:

Answer: base x height divided by 2

Step-by-step explanation:

multiple the base and height then divide by 2

Step-by-step explanation:

that is the solution above

Answer:

Identify angle C. It is the angle whose measure you know.

Identify a and b as the sides that are not across from angle C.

Substitute the values into the Law of Cosines.

Solve the equation for the missing side.

Step-by-step explanation:

For a right triangle, use the Pythagorean Theorem. For an isosceles triangle, use the area formula for an isosceles. If you know some of the angles and other side lengths, use the law of cosines or the law of sines.

Answer:

find the LCM of the dimensions of the slabs

=420

As time passes, the amount of money in the account increases.

The amount in the account increases by $45.

The amount of money in the account when he started depositing is  $197.

A linear function is a function that has one independent variable and one dependent variable. A linear function increases at a constant rate over a period of time. When drawn on a graph, a linear function is usually a straight line.

The form of linear functions is:

y = a + mx

Where:

Looking at the given table, it can be seen that as time passes, the amount of money increases.

Rate of increase = (change in the amount of money) / change in the months

(557 - 467) / (8 - 6)

= 90 / 2

= $45

Amount in the account at the beginning = account balance at 6 months - (rate of increase x 6)

467 - (6 x 45)

467 - 270 = $197

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Answer:

Step-by-step explanation:

[tex]\displaystyle\\\frac{1}{1+\frac{1}{\sqrt{3} } }=\\\\\frac{1}{\frac{1*\sqrt{3} +1}{\sqrt{3} } } =\\\\\frac{1*\sqrt{3} }{\sqrt{3}+1 }=\\\\\frac{(\sqrt{3})(\sqrt{3}-1) }{(\sqrt{3}+1)(\sqrt{3}-1) }=\\\\\frac{(\sqrt{3})(\sqrt{3})-(1)(\sqrt{3}) }{(\sqrt{3})^2-1^2 } =\\\\\frac{3-\sqrt{3} }{3-1} =\\\\\frac{3-\sqrt{3} }{2}[/tex]

The equation in point-slope form of the line having the slope m=0 that contains the points (-2,6) is y-6=0(x+2)

Given,

The slope m= 0

The points =(-2,6)

We know the point-slope form,

[tex]y-y_{1}=m(x-x_{1} )[/tex]

Substitute the values in the equation

y-6=0(x-(-2))

y-6=0(x+2)

Hence, the equation in point-slope form of the line having the slope m=0 that contains the points (-2,6) is y-6=0(x+2)

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The arithmetic mean a n of the given terms. a n₋₁ =-2 x, a n₊₁=2 x

[tex]a_{n}[/tex] = x/2

The sum of a set of numbers divided by the total number of numbers in the set is known as the arithmetic mean or arithmetic average in mathematics and statistics.

The arithmetic mean can be calculated as one approach. Divide the total by the total number of values after adding up all the values. Add the numbers together, for instance: a + b + c + d and so on, if there is a set of "n" numbers.

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Answer: Cynthia will receive $5,400, Moses will receive $8,100, John will receive $13,500

Step-by-step explanation:

       First, we will see how many "portions" the money is broken up into.

2:3:5 can become 2 + 3 + 5 = 10

       Next, we will see how much money each "portion" is worth using division.

$27,000 / 10 = 2,700

       Finally, we will multiply to see how much each person will receive.

2:3:5

2 * $2,700 = $5,400 [Cynthia]

3 * $2,700 = $8,100 [Moses]

5 * $2,700 = $13,500 [John]

Answer:

Cynthia's money = $5,400

Moses' money = $8,100

John's money = $13,500

Step-by-step explanation:

The full ratii of the money will be 2+3+5 = 10

Cynthia's ratio = 2 × $27,000

10

= 2 × 2,700

= $5400

Moses' ratio = 3 × $27,000

10

= 3 × 2,700

= $8100

John's ratio = 5 × $27,000

10

= 5 × 2,700

= $13,500

The measure of m (arc ACD) is 180°

Here,

AD and CG are diameter of circle B.

We have to find the measure of m ACD.

What is Diameter of a circle?

A line that passes through the center and meets the circumference at opposite ends is called diameter of a circle.

Now,

Since, AD is a diameter.

Therefore, ACD is a semicircle.

The measure of a semicircle is 180.

So, The measure of m (arc ACD) is 180°.

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Answer:

something

Step-by-step explanation:

onther something

area of ∆PQR/ area of ∆WUV = 1/9

The fractions in the simplest form is: = -73/24.

Given the expression involving fractions, -7/8 + (-2⅙), we would solve as shown below:

-7/8 + (-2⅙)

Convert the mixed fraction to improper fraction

= -7/8 + (-13/6)

Distribute to eliminate the parentheses

= -7/8 - 13/6

= (-21 - 52)/24

= -73/24

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Using substitution method, the solution of the given system of equations is (-9, -26)

A system of equation can be solved using:

The given system of equations:

y = 3x+1   ............   (1)

2x - y = 8  .............. (2)

Notice the y variable is already isolated on the left side. Therefore, we can immediately use the substitution method.

Substitute y = 3x+1 into equation (2):

2x - y = 8

2x - (3x + 1) = 8

-x -1 = 8

-x = 9

Multiply by (-1)

x = -9

Substitute back x = -9 into equation (1)

y = 3x + 1

   = 3.(-9) + 1

   = -27 + 1 = -26

Hence, the solution is (-9, -26)

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The cost of each video is found to be $0.99.

Two-variable linear equations If a, b, and r are all real numbers (and a and b are not both equal to 0), ax+by = r is known as a linear equation in two variables.

(The x and y are the "two variables.") The coefficients of a equation ax+by = r are the numbers a and b.

Now, as per the stated question;

Let the number of video be denoted by 'x'.

Let the number of songs be denoted by 'y'.

Then,

Tameron downloaded 2 videos and 7 songs $10.91 .

2x + 7y = 10.91   ......(equation 1)

Jake downloaded 3 videos and 4 songs for $ 9.93.

3x + 4y = 9.93   ......(equation 2)

Solving equation 1 and 2 by elimination method, we get

x = 1.956 and y = 0.99

Therefore, the cost of each video is $0.99.

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yes,  the set of points at which the function f(x, y, z) = p 2x 7y 3z .

Describe the equation of continuity with an example?

given , f( x,y,z) = [tex]\sqrt{4x + 7y + z}[/tex]

clearly ( 4x + 7y+ z ) is a polymial  function

So, differentiable & continuous on R

So, [tex]\sqrt{4x + 7y + z }[/tex]  is coutinuous on every point  with 4x + 7y+ z≥ 0

       i.e.  with z ≥ ( -4x - 7y)

∴ the set points at which  f is continuous is

D = { X , Y,Z } Z ≥  ( 4x - 7y)

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Answer:

123 people

Step-by-step explanation:

60 + 36x ≤ 4500  x is  the number of people

36x ≤ 4440  Subtract 60 from both sides of the equation

x ≤ 123.333...  Divide both sides  by 36.

We cannot have a portion of a person, so we would round down to the next person which would be 123.

The equation for the vertical translation of y=f(x). 4 units up is y=f(x)+4.

Using equations of the form y=f(x), you may be able to modify the graph in various ways. For example, you can move the chart up, down, left, or right, flip it around the x or y-axis, or stretch or shrink it vertically or horizontally. Understanding these transformations makes it easy to graph different functions. Start with a "basic model" and apply a series of modifications/transformations to change it to the desired function.

A point on the graph of y=f(x) has the shape (x,f(x)).

The points on the graph of y=f(x)+4 are of the form (x,f(x)+4).

So, the graph for y=f(x) +4 is the same as the graph for y=f(x) shifted up by 4 units.

The new equation is:

y=f(x)+4

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The slope of the line 5y + 3 = (2/5)x is 2 .

The equation of a straight line can be written as follows,

y = mx + c                                         equation 1

m in the above equation represents slope of the line and c represents the intercept.

The given equation is 5y + 3 = (2/5)x .

To get the slope of this given equation we need to convert the given equation in the format of equation of a straight line i.e., equation1.

So, now we will rearrange the given equation as,

 5y + 3 = (2/5)x

⇒ 5y = (2/5)x - 3

Now on dividing this equation by 5 on both sides, we will get

⇒ y = 2x + (-3/5)                                               equation 2

On equating equation 1  and equation 2, we will get

Slope of the line = m = 2

Intercept = c = (-3/5)

The slope of the line 5y + 3 = (2/5)x  is 2 .

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The soultion of the given equation 1/4x - 3/4 = 7/x for x is 9.

According to the given question.

We have an equation 1/4x - 3/4 = 7/x.

As we know that, as we know that, an equation is a condition on a variable such that two expressions in the variable should have equal value.

Therefore, the solution of the equation 1/4x - 3/4 = 7/x is given by

1/4x - 3/4 = 7/x

⇒ 1/4x - 7/x -3/4 = 0

⇒  1- 28/4x = 3/4

⇒ 27/4x = 3/4

⇒ 27  = (3/4)(4x)

⇒ 27 = 3x

⇒ 27/3  = x

⇒ x = 9

Hence, the soultion of the given equation 1/4x - 3/4 = 7/x for x is 9.

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The equation be I = √W/R  

Where I is the current.

W stands for electrical power.

R stands for resistance in ohms then the value of I = 0.5.

A circuit's ability to transport electrical energy is referred to as its electric power. One joule per second, or one watt, is the SI unit of power. Similar to other SI units, watts have standard suffixes that refer to thousands, millions, and billions of watts as kilowatts, megawatts, and gigawatts, respectively.

Let the equation be I = √W/R

Where, I is the current.

W stands for electrical power.

R stands for resistance in ohms.

Simply enter the values of W and R into the equation, i.e.,

When W = 50, R = 200, to solve for the value of I for each set.

I = √50/ 200

The square root of I = √0.25

W = 50, R = 200, I = 0.5.

I = √50/ 200

The square root of I = √0.25

I = 0.5

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Answer:

it might be 3.8169 to the 6th power or 9.6296 to the 2nd power.

Step-by-step explanation:

but I might be

Answer:

x < -2

Step-by-step explanation:

-2x + 4 > 8

     -4      -4

-2x > 4

divide both sides by -2

x < -2

Because we divided by a negative number, the sign gets flipped. So, the answer is x < -2

Hope this helps!