graph the equations to solve the system


y=-x

y=2x+3

click on the correct answer #1 solutions :all numbers on the line #2 no solutions {} #3 one solution:{-1,1} #4 one solution:{0,3}

Answer:

true.

Step-by-step explanation:

(x - y)z = xz - yz

Apply the distributive property of multiplication over addition to the left side:

(x - y)z =

= z(x - y)

= xz - yz

This is the same as the right side, so the statement is true.

Answer: $5.00 for 1 day

Step-by-step explanation:

Unit price refers to the price of an item in one unit (one), 1 in quantity in particular. $5.00 goes in daily pricing - 1 day. While the others are pricing in multiple units.

Hope it helped!

Answer:

14.3178210633

Step-by-step explanation:

distance formula, d= sq root of ((x2-x1)^2+(y2-y1)^2)

Answer:

ab = [tex]\sqrt{42}[/tex].

Step-by-step explanation:

Given  : A= (4,-5) and b=(7,9).

To find : what is the length of ab.

Solution : We have given that  A= (4,-5) and b=(7,9).

Distance formula : [tex]\sqrt{(x_{2}-x_{1}(y_{2} -y_{1})}[/tex].

Here, [tex]x_{1} =4[/tex]

[tex]x_{2} =7[/tex]

[tex]y_{1} =-5[/tex]

[tex]y_{2} =9[/tex].

Then   [tex]\sqrt{(7-4)(9-(-5))}[/tex].

ab = [tex]\sqrt{(3)(14)}[/tex].

ab = [tex]\sqrt{42}[/tex].

Therefore, ab = [tex]\sqrt{42}[/tex].

14 more points. Do 42-28.

Step-by-step explanation:

When two straight lines intersect, they form 4 angles around the point. It can be seen that there are two angles in terms of x on a straight line, which sum up to 180 degrees. Therefore:

3y + y + 88 = 180 and 6x + 35 + 8x - 23 = 180.

Solving for x and y gives:

4y = 92 and 14x = 168.

y = 23 and x = 12.

Substituting the values back in the expression gives the angles:

XAW = 3(23) = 69 degrees.

WAY = 23 + 88 = 111 degrees.

ZAY = 8(12) - 23 = 73 degrees.

XAZ = 6(12) + 35 = 107 degrees.

The problem in this question is that whenever straight lines intersect, they form the vertical opposite angles. The vertical opposite angles are equal. In this question, angle XAW = angle ZAY and angle WAY = angle XAZ. However, in this question, these angles are not equal. (69 is not equal to 73 and 111 is not equal to 107). Hence, this is the problem in the question!!!

It appears that you are asking for a solution to a mathematical problem involving variables x and y and are referencing a figure which seems to be related to the problem. However, the values for x and y are not provided, and the figure in question is also missing from your message.
To solve for x and y, we need the full details of the problem including the specific mathematical equations or relationships that involve x and y. If there is a diagram or figure associated with the problem, the details about the figure such as angles, sides, shapes, or any labels are crucial in order to provide a solution.
Without this information, I cannot provide a correct solution to the problem.
To assist you better, please provide the complete problem statement with all necessary details. If there are equations that need to be solved, specify them. If there is a geometric figure involved, please describe it or provide the relevant measurements and properties that relate to x and y.
Once you provide the full context of the problem, I would be glad to help you find the value of x and y and also explain what might be wrong with the figure, if applicable.

Hey there! :)

1/2(n - 1) - 3 = 3 - (2n + 3)

Simplify.

1/2n - 1/2 - 3 = 3 - 2n - 3

Add like terms.

1/2n - 3 1/2 = -2n

Add 3 1/2 to both sides.

1/2n = -2n + 3 1/2

Then, add 2n to both sides.

1/2n + 2n = 3 1/2

Simplify!

2 1/2n = 3 1/2

Make everything into improper fractions!

5/2n = 7/2

Multiply everything by 2 to get rid of the denominators.

5/2n × 2 = 7/2 × 2

Simplify!

5n = 7

Divide both sides by 5.

n = 7/5

Hope this helped! :)

Answer:

[tex]\frac{7}{5} = n[/tex]

Step-by-step explanation:

[tex] \frac{1}{2} (n - 1) - 3 = 3 - (2n + 3) \\ [/tex]

Solve the brackets.

[tex] \frac{n}{2} - \frac{1}{2} - 3 = 3 - 2n - 3 \\ [/tex]

Make the denominator the same to solve the fractions.

[tex] \frac{n}{2} - \frac{1}{2} - \frac{3 \times 2}{1 \times 2} = 3 - 2n - 3 \\ [/tex]

Combine like terms.

[tex] \frac{n}{2} - \frac{1}{2} - \frac{6}{2} = - 2n \\ \\ \frac{n - 7}{2} = - 2n \: \: \: \: \: \: \: \: [/tex]

Use cross multiplication to solve for n.

[tex]n - 7 = - 4n \\ \\ - 7 = - 4n - n \\ \\ - 7 = - 5n \: \: \: \: \: \: \\ \\ \frac{ - 7}{ - 5} = \frac{ - 5n}{ - 5} \: \: \: \: \\ \\ \frac{7}{5} = n \: \: \: \: \: \: \: [/tex]

Answer:

obtuse, because 6^2+10^2 is greather than 12^2

Step-by-step explanation:

The triangle with side lengths 6 cm, 10 cm, and 12 cm is a right triangle. This is determined by applying the Pythagorean theorem (a^2 + b^2 = c^2) to the side lengths of the triangle.

The classification of a triangle can be determined by its side lengths. In this context, you have a triangle with side lengths 6 cm, 10 cm, and 12 cm. This is not an acute triangle, contrary to the original statement. It is, in fact, a right triangle.

To determine this, one can use the Pythagorean theorem, which states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. This can be written as a^2 + b^2 = c^2.

If we apply the Pythagorean theorem to our triangle, we find that 6^2 + 10^2 equals 36 + 100, which is 136. Similarly, 12^2 equals 144. Since 136 is less than 144, the triangle is indeed a right triangle, not an acute triangle.

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Answer:

[tex]f(n) = \frac{n}{3} [/tex]

Step-by-step explanation:

Recall that:

[tex]3ft = 1 \: yd[/tex]

This implies that:

[tex] 6ft = 2yds[/tex]

[tex] 9ft = 3yds[/tex]

In general:

[tex] n \: ft = \frac{n}{3} \: \: yds[/tex]

We can therefore write the function rule:

[tex]f(n) = \frac{n}{3} [/tex]

Answer:

auditory nerve

Step-by-step explanation:

the auditory nerve carries sound signals to the brain. The cochlea picks up sound waves and makes nerve signals.

Answer:

The auditory nerve

Step-by-step explanation:

Answer:

Absolute value means the distance between a number and 0.

Examples:

The absolute value of -7 is 7.

The absolute value of 5 is 5.

Key Concepts:

The absolute value sign is |x|, where x is any real number.

The absolute value removes any negative sign in front of a number.

Absolute value is an important math concept to understand. To represent the absolute value of a number, we use a vertical bar on either side of the number. Absolute value means "distance from zero" on a number line. Let's try an example to understand how absolute value works.

What is the absolute value of 4 and -4?

To find the absolute value of 4, we know that 4 is 4 units from zero on a number line. Therefore, the absolute value of 4 is 4.

For the absolute value of -4, we know that -4 is also 4 units from zero on the number line. Therefore, the absolute value of -4 is also 4.

Another way that I like to think about absolute value is no matter what number you have inside the absolute value, the result will always be positive. In other words, the absolute value of any number is the positive version of that number.

Answer:

[tex]f^{-1}(x)=\frac{x+4}{3}[/tex]

C is the correct option.

Step-by-step explanation:

The given function is [tex]f(x)=3x-4[/tex]

Replace f(x) with y

[tex]y=3x-4[/tex]

Interchange x and y as shown below

[tex]x=3y-4[/tex]

Solve the equation for y

[tex]x+4=3y\\\\y=\frac{x+4}{3}[/tex]

Therefore, the inverse of f(x) is given by

[tex]f^{-1}(x)=\frac{x+4}{3}[/tex]

C is the correct option.

Answer:

(3x-2)(2x+5)

or

(2x+5)(3x-2) by commutative property

Step-by-step explanation:

Let's try factoring by grouping.

[tex]6x^2-4x+15x-10[/tex]

I'm going to group the first two terms together and the second two terms together.

[tex](6x^2-4x)+(15x-10)[/tex]

Now I'm going to factor what I can from each pair:

[tex]2x(3x-2)+5(3x-2)[/tex]

Now if you look at the terms 2x(3x-2) and 5(3x-2) you should see they have a common factor of (3x-2) so we can factor that out now.

(3x-2)(2x+5)

Factoring by grouping was a successful here.

Answer:

(3x - 2)(2x + 5)

Step-by-step explanation:

Given

6x² - 4x + 15x - 10 ( factor the first/second and third/fourth terms )

=2x(3x - 2) + 5(3x - 2) ← factor out (3x - 2) from each term

= (3x - 2)(2x + 5) ← in factored form

Answer:

See below.

Step-by-step explanation:

To multiply a monomil by a polynomial, multiply the monomial by each term of the polynomial.

Example: Multiply 3x^2 by 4x^2 + 5x - 2

3x^2(4x^2 + 5x - 2) =

= 3x^2 * 4x^2 + 3x^2 * 5x + 3x^2 * (-2)

= 12x^4 + 15x^3 - 6x^2

To multiply a monomial and a polynomial that is not monomial, distribute the monomial term to each term of the polynomial, and then simplify the resulting expression by combining like terms.

To multiply a monomial and a polynomial that is not monomial, distribute the monomial term to each term of the polynomial, and then simplify the resulting expression by combining like terms.

For example, let's multiply the monomial 3x^2 by the polynomial 4x^3 + 2x - 1:

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Step-by-step explanation:

We arrange numbers in ascending order

Range - numbers appearing (without repetition)

Median - middle value

Mean - the sum of the numbers divided by the number of items

Mode - the value that appears most often.

[tex]\bold{Q4.}\\\\22,\ 36,\ 39,\ 39,\ 40,\ 40,\ 41,\ 42,\ 45,\ 46,\ 46,\ 49\\\\\bold{Range:}\ 22,\ 36,\ 39,\ 40,\ 41,\ 42,\ 45,\ 46,\ 49\\\\\bold{Median:}\ 40,\ 41\to\dfrac{40+41}{2}=40.5\\\\\bold{Mean:}\ \dfrac{22+36+39+39+40+40+41+42+45+46+46+49}{12}=40\dfrac{5}{12}\\\\\bold{Mode:}\ 39,\ 40\ and\ 46[/tex]

[tex]\bold{Q5.}\\\\79,\ 83,\ 84,\ 86,\ 86,\ 90,\ 94\\\\\bold{Range:}\ 79,\ 83,\ 84,\ 86,\ 90,\ 94\\\\\bold{Median}:\ 86\\\\\bold{Mean:}\ \dfrac{79+83+84+86+86+90+94}{7}=86\\\\\bold{Mode:}\ 86[/tex]

Answer:

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

Step-by-step explanation:

Given

[tex]\frac{5}{2x}[/tex] = [tex]\frac{25}{4}[/tex] ( cross- multiply )

25 × 2x = 5 × 4

50x = 20 ( divide both sides by 50 )

x = [tex]\frac{20}{50}[/tex] = [tex]\frac{2}{5}[/tex]

Answer:

x = 2/5

Step-by-step explanation:

5/2x} = 25/4 (cross- multiply)

25 × 2x = 5 × 4

50x = 20 (divide both sides by 50)

x = 20/50

x = 2/5

Answer:

56√10.

Step-by-step explanation:

7√8 * 4√5

= 28 √40

= 28 √4√10

= 28 * 2√10

= 56√10.

Answer:

56[tex]\sqrt{10}[/tex]

Step-by-step explanation:

Using the rule of radicals

[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]

Given

7[tex]\sqrt{8}[/tex] × 4[tex]\sqrt{5}[/tex]

= 7 × 4 × [tex]\sqrt{8(5)}[/tex]

= 28 × [tex]\sqrt{40}[/tex]

= 28 × [tex]\sqrt{4(10)}[/tex]

= 28 × [tex]\sqrt{4}[/tex] × [tex]\sqrt{10}[/tex]

= 28 × 2 × [tex]\sqrt{10}[/tex]

= 56[tex]\sqrt{10}[/tex]

Answer:

2 gallons

Step-by-step explanation:

If you use one whole gallon, you will have covered 2/4.

When you simplify this fraction, you get 1/2. This means you have another half to cover.

So, 1 gallon plus another gallon is 2.

Answer:

2 gallons of paint.

Step-by-step explanation:

Since [tex]\frac{1}{2}[/tex] gallon of paint covered = [tex]\frac{1}{4}[/tex] of the wall.

Therefore, 1 gallon of paint covered = 1 × [tex]\frac{1}{4}[/tex] = [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex] of the wall.

To paint 1 wall we need the paint = [tex]\frac{1}{\frac{1}{2} }[/tex] = [tex]1\times\frac{2}{1}[/tex] gallon of paints

                                                      = 2 gallons of paint.

2 gallons of paint covers the whole wall.

A scalene triangle has all different side lengths and different sized angles. This means that a scalene can NOT have two congruent angles.

This means that the answer is:

True

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

it is actually false

cause you can change the angles or sides to turn it scalene

Step-by-step explanation:

The answer is:

Center: (-4,-4)

Radius: 2 units.

To solve the problem, using the given formula of a circle, we need to find its standard equation form which is equal to:

[tex](x-h)^{2}+(y-k)^{2}=r^{2}[/tex]

Where:

"h" and "k" are the coordinates of the center of the circle and "r" is its radius.

So, we need to complete the square for both variable "x" and "y".

The given equation is:

[tex]x^{2}+y^{2}+8x+8y+28=0[/tex]

So, solving we have:

[tex]x^{2}+y^{2}+8x+8y=-28[/tex]

[tex](x^2+8x+(\frac{8}{2})^{2})+(y^2+8y+(\frac{8}{2})^{2})=-28+((\frac{8}{2})^{2})++(\frac{8}{2})^{2})\\\\(x^2+8x+16 )+(y^2+8y+16)=-28+16+16\\\\(x^2+4)+(y^2+4)=4[/tex]

[tex](x^2-(-4))+(y^2-(-4))=4[/tex]

Now, we have that:

[tex]h=-4\\k=-4\\r=\sqrt{4}=2[/tex]

So,

Center: (-4,-4)

Radius: 2 units.

Have a nice day!

Note: I have attached a picture for better understanding.

The radius of the circle is 2 units.

To find the radius of the circle with equation x²+y²+8x+8y+28=0, we need to rearrange the equation into the standard form (x-h)²+(y-k)²=r², where (h,k) is the center of the circle and r is the radius. By completing the square, we can rewrite the equation as (x+4)²+(y+4)²=4.

Comparing this with the standard form, we can see that the center of the circle is (-4,-4) and the radius is √4 = 2. Therefore, the radius of the circle is 2 units.

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[tex]\huge{\boxed{32\%}}[/tex]

We can find this information using the table. The number of female students that like peas is 64, and the total number of students is 200. That gives us the following fraction. [tex]\frac{64}{200}[/tex]

Now, turn this into a percentage by making the denominator 100. This is done by dividing the numerator and denominator each by 2, since the denominator is 100. [tex]\frac{64 \div 2}{200 \div 2}= \frac{32}{100}=32%[/tex]

Required probability that one of these students is female and

likes peas is 32/100 or 32%

According to the problem,

∴ Required probability = 64/200 = 32/100 = 32%

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Answer:

Both of those are functions.

Step-by-step explanation:

[tex]y=x^2[/tex] is a parabola that opens up.

Any upward or downward parabola is a function because they pass the vertical line test.

[tex]x=\pm \sqrt{1-y}{/tex]

Square both sides:

[tex]x^2=1-y[/tex]

Subtract 1 on both sides:

[tex]x^2-1=-y[/tex]

Multiply both sides by -1:

[tex]-x^2+1=y[/tex]

So this is a another parabola and it is faced down.  So this is also a function.

[tex]y=ax^2+bx+c[/tex] wit [tex]a \neq 0[/tex] willl always be a parabola.  

If [tex]a>0[/tex] then it is open up.

If [tex]a<0[/tex] then it is open down.

Upwards and downward parabolas will always be functions.

[tex]x=ay^2+by+c[/tex] are also parabolas but these open to the left or right.  These will not be functions because they will not pass the vertical line test.  

Answer:

N'

Step-by-step explanation:

L corresponds to L'

M corresponds to M'

N corresponds to N'

O corresponds to O'

P corresponds to P'

After the transformation if you copy and paste your picture over the new picture, the corresponding angles should lay on top of each other.

Polygon LMNOP was transformed to create polygon L'M'N'O'P'.  The angle N corresponds to N'.

A polygon is a two-dimensional geometric figure that has a finite number of sides. The sides of a polygon are made of straight line segments connected to each other end to end. Thus, the line segments of a polygon are called sides or edges.

Here,

L corresponds to L'

M corresponds to M'

N corresponds to N'

O corresponds to O'

P corresponds to P'

Hence, The N corresponds to N'.

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Answer:

a) 3

b) 364

Step-by-step explanation:

A geometric sequence in explicit form is [tex]a_n=a_1 \cdot r^{n-1}[/tex] where [tex]a_1[/tex] is the first term and [tex]r[/tex] is the common ratio.

We are given:

[tex]a_5=9 \cdot a_3[/tex]

[tex]a_6+a_7=972[/tex].

What is a) r?

What is b) the sum of the first 6 terms?

So I'm going to use my first equation and use my explicit form to find those terms in terms of r:

[tex]a_1 \cdot r^4=9 \cdot a_1 \cdot r^{2}[/tex]

Divide both sides by [tex]a_1r^2[/tex]:

[tex]r^2=9[/tex]

[tex]r=\sqrt{9}[/tex]

[tex]r=3[/tex].

So part a is 3.

Now for part b).

We want to find [tex]a_1+a_2+a_3+a_4+a_5+a_6[/tex].

So far we have:

[tex]a_1=a_1[/tex]

[tex]a_2=3a_1[/tex]

[tex]a_3=3^2a_1[/tex]

[tex]a_4=3^3a_1[/tex]

[tex]a_5=3^4a_1[/tex]

[tex]a_6=3^5a_1[/tex].

We also haven't used:

[tex]a_6+a_7=972[/tex].

I'm going to find these terms in terms of r (r=3).

[tex]3^5a_1+3^6a_1=972[/tex]

[tex]243a_1+729a_1=972[/tex]

You have like terms to add:

[tex]972a_1=972[/tex]

Divide both sides by 972:

[tex]a_1=1[/tex]

The first term is 1 and the common ratio is 3.

The terms we wrote can be simplify using a substitution for the first term as 1:

[tex]a_1=a_1=1[/tex]

[tex]a_2=3a_1=3(1)=3[/tex]

[tex]a_3=3^2a_1=9(1)=9[/tex]

[tex]a_4=3^3a_1=27(1)=27[/tex]

[tex]a_5=3^4a_1=81(1)=81[/tex]

[tex]a_6=3^5a_1=243(1)=243[/tex].

Now we just need to find the sum of those six terms:

1+3+9+27+81+243=364.

Answer:

Option 2) 20°

Step-by-step explanation:

Step 1: Write relevant properties of triangle.

All 3 sides of a triangle are equal to 180 degrees.

In an isosceles triangle, 2 sides and 2 angles are same.

Step 2: Calculate another angles

Since it is an isosceles triangle, two sides will be same therefore, 2 angles will be same.

Angle 1 = Angle 2 = 20 degrees (because isosceles triangle)

Therefore, 20° is the measure of one of the other angles.

Option 2

!!

Answer: FIRST OPTION.

Step-by-step explanation:

It is important to remember that an Acute Isosceles triangle has two congruent sides and all its angles measure less than 90 degrees. Then, the third option and the the fourth option are not one of the other angles.

You know that the sum of the interior angles of a triangle is 180 degrees.

Then, let be "x" one the other angles, let's check the first option:

[tex]80\°+20\°+x=180\°\\x=80\°[/tex]

Since [tex]80\°<90\°[/tex], the angle provided in the first option is one of the other angles.

 Let's check the second option:

[tex]20\°+20\°+x=180\°\\x=140\°[/tex]

Since [tex]140\°>90\°[/tex], the angle provided in the second option is not one of the other angles.

[tex]0.0\overline{3}=\dfrac{1}{30}\\0.\overline{03}=\dfrac{1}{33}\\\\\dfrac{0.0\overline{3}}{0.\overline{03}}=\dfrac{\dfrac{1}{30}}{\dfrac{1}{33}}=\dfrac{1}{30}\cdot33=\dfrac{11}{10}=1\dfrac{1}{10}[/tex]

Answer:

6 and up

Step-by-step explanation:

this is beacuse when you add all the angels up you you would have to have a minimum of 6 to pass the negative 5

Answer:

x = 80°

Step-by-step explanation:

The sum of the interior angles of a hexagon is 720 degrees. So,

x + (x - 5) + (x - 5) + (2x - 5) + (2x - 5) + (2x + 20) = 720

Eliminating parenthesis

x + x - 5 + x - 5 + 2x - 5 + 2x - 5 + 2x + 20 = 720

Adding and subtracting

9x + 0 = 720

Isolating x

x = 720/9

x = 80

Answer:

The range is [tex](0,\infty)[/tex]  (in interval notation).

The range is [tex]0<y<\infty)[/tex] or [tex]y>0[/tex] (in inequality notation).

The range is all real numbers greater than 0  (in words).

Step-by-step explanation:

[tex]5^{x}[/tex] we get close to 0 but will never be 0.  [tex]5^{x}[/tex] will also never be negative.

[tex]5^{x}[/tex] is positive for any real input [tex]x[/tex].

Here is a table of values to help try to convince you we are only ever going to get positive outcomes.

[tex]x[/tex]  |  [tex]5^x[/tex]

-4                 5^(-4)=1/625

-3                 5^(-3)=1/125

-2                 5^(-2)=1/25

-1                  5^(-1)=1/5

0                  5^0=1

1                   5^1=5

2                  5^2=25

3                  5^3=125

4                  5^4=625

You can see the y's are increasing as you increase the x value.

Even if you plug in really left numbers on the number like -200 you will still get a positive number like [tex]5^{-200}=\frac{1}{5^{200}}[/tex]. This number will be really close to 0.  You can go more left of -200 and the outcome will be even closer to 0.

I'm just trying to convince you on the left side the y's will approach 0 but never cross the x-axis on the right side the numbers keep getting larger and larger.

The range is [tex](0,\infty)[/tex]  (in interval notation).

The range is [tex]0<y<\infty)[/tex] or [tex]y>0[/tex] (in inequality notation).

The range is all real numbers greater than 0  (in words).

You can also look at the graph and see that the y's for this equation only exist for number y's greater than 0.  You only see the graph above the x-axis.

Answer:

The range is f(x) = all real values above 0.

In interval notation it is (0, ∞).

Step-by-step explanation:

5^x can have any value above 0 . It cannot be negative or 0.

Answer:

8/100.   Eight hundredths  or we can write it as 8 * 10^-2.

Step-by-step explanation:

The first digits after the decimal point is  tenths ( 7 tenths) and the second is hundredths, the third is thousandths.

Answer:

The percentage change is 7.67%

Step-by-step explanation:

Cost of stock in a restaurant when bought= $300

Cost of stock in a restaurant now = $323

Change in cost = 323 -300 = $23

The percentage change is = (change in cost/Cost of stock in a restaurant when bought) * 100

The percentage change is = (23/300) * 100 = 7.67 %

The percentage change is 7.67%

To calculate the percentage change in the value of Jorge's stock, you follow these steps:
1. Find the change in value by subtracting the initial value from the current value.
2. Divide the change in value by the initial value to get the fraction that represents the change.
3. To find the percentage change, multiply the fraction from step 2 by 100.
Let's do this for Jorge's stock:
1. Change in value: \( $323 - $300 = $23 \)
2. Fraction of change: \( \frac{23}{300} \)
3. Percentage change: \( \left(\frac{23}{300}\right) × 100 \)
Now let's compute the percentage change:
\( \left(\frac{23}{300}\right) × 100 = \left(\frac{23}{3}\right) \)
After calculating this, you would get the percentage change as:
\( \frac{23}{3} = 7.666... \)
Rounded to two decimal places, the result would be 7.67.
So the complete statement is:
The percentage change is 7.67%.