What is the answer

Answer:

9

Step-by-step explanation:

8x-13=5x+14

you subtract 5x from both sides and get

3x-13=14

then add 13 to both sides  and get

3x=27

then divide 3 from both sides

3/3=x

27/3=9

x=9

Answer:

x = 9

Step-by-step explanation:

8x - 13 = 5x + 14                                                                                                                                Subtract 5x from both sides of the equation                                                                    3x - 13 = 14                                                                                                                          Add 13 to both sides of the equation                                                                            3x = 27                                                                                                                                     Divide by 3 for both sides of hte eqation                                                                        x = 9

Answer:

a) 3x=18

x=18/3

x=6

b) 2x=9

x=9/2

or 4.5

c) x/5=7

x=7×5

x=35

d) x/2=6.5

x=6.5×2

x=13

Answer:

Step-by-step explanation:

a) 3x = 18, value of x?

→ 3x = 18

→ x = 18/3

→ [ x = 6 ]

Thus, value of x is 6.

b) 2x = 9, value of x?

→ 2x = 9

→ [ x = 9/2 ]

Thus, value of x is 9/2.

c) x/5 = 7, value of x?

→ x/5 = 7

→ x = 7 × 5

→ [ x = 35 ]

Thus, value of x is 35.

d) x/2 = 6.5, value of x?

→ x/2 = 6.5

→ x = 6.5 × 2

→ [ x = 13 ]

Thus, value of x is 13.

Answer:

1. E

2. A

3. B

4. C

5. E

Step-by-step explanation:

Answer:

c=0

Step-by-step explanation:

Answer: Y>5/6

Step-by-step explanation: I had this on khan Academy and got this right

The solution to the inequality 5y + 3 > -7y + 13 is y > 5/6.

Given the inequality in the question:

5y + 3 > -7y + 13

To solve the inequality 5y + 3 > -7y + 13, combine like terms on both sides and isolate the variable term:

5y + 3 > -7y + 13

Add 7y to both sides of the inequality:

5y + 7y + 3 > -7y + 7y + 13

5y + 7y + 3 > 13

12y + 3 >  13

Next, subtract 3 from both sides of the inequality:

12y + 3 - 3 > 13 - 3

12y > 10

Isolate variable y by dividing both sides by 12:

y > 10/12

Simplifying, we get:

y > 5/6

Therefore, the solution is y > 5/6.

Learn more about inequality here: https://brainly.com/question/15137133

#SPJ2

Answer:

-21

Step-by-step explanation:

f(-8) = 2(-8)-5 = -21

Answer:

110 ft

70/7=10

1100/10=110

Step-by-step explanation:

Answer:

um on what ?

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

To use the vertical line test, take a ruler or other straight edge and draw a line parallel to the y-axis for any chosen value of x. If the vertical line you drew intersects the graph more than once for any value of x then the graph is not the graph of a function.

Answer:

i do not know

Step-by-step explanation:

Answer:

The statement is now presented as:

[tex]\exists\, (h,k)\in \mathbb{R}^{2} /f: (x-h^{2})+(y-k)^{2}=r^{2}\implies f': [x-(h+4)]^{2}+[y-(-k)]^{2} = r^{2}[/tex]

In other words, this mathematical statement can be translated as:

There is a point (h, k) in the set of real ordered pairs so that a circumference centered at (h,k) and with a radius r implies a equivalent circumference centered at (h+4,-k) and with a radius r.

Step-by-step explanation:

Let [tex]C = (h,k)[/tex] the coordinates of the center of the circle, which must be transformed into [tex]C'=(h', k')[/tex] by operations of translation and reflection. From Analytical Geometry we understand that circles are represented by the following equation:

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

Where [tex]r[/tex] is the radius of the circle, which remains unchanged in every operation.

Now we proceed to describe the series of operations:

1) Center of the circle is translated 4 units to the right (+x direction):

[tex]C''(x,y) = C(x, y) + U(x,y)[/tex] (Eq. 1)

Where [tex]U(x,y)[/tex] is the translation vector, dimensionless.

If we know that [tex]C(x, y) = (h,k)[/tex] and [tex]U(x,y) = (4, 0)[/tex], then:

[tex]C''(x,y) = (h,k)+(4,0)[/tex]

[tex]C''(x,y) =(h+4,k)[/tex]

2) Reflection over the x-axis:

[tex]C'(x,y) = O(x,y) - [C''(x,y)-O(x,y)][/tex] (Eq. 2)

Where [tex]O(x,y)[/tex] is the reflection point, dimensionless.

If we know that [tex]O(x,y) = (h+4,0)[/tex] and [tex]C''(x,y) =(h+4,k)[/tex], the new point is:

[tex]C'(x,y) = (h+4,0)-[(h+4,k)-(h+4,0)][/tex]

[tex]C'(x,y) = (h+4, 0)-(0,k)[/tex]

[tex]C'(x,y) = (h+4, -k)[/tex]

And thus, [tex]h' = h+4[/tex] and [tex]k' = -k[/tex]. The statement is now presented as:

[tex]\exists\, (h,k)\in \mathbb{R}^{2} /f: (x-h^{2})+(y-k)^{2}=r^{2}\implies f': [x-(h+4)]^{2}+[y-(-k)]^{2} = r^{2}[/tex]

In other words, this mathematical statement can be translated as:

There is a point (h, k) in the set of real ordered pairs so that a circumference centered at (h,k) and with a radius r implies a equivalent circumference centered at (h+4,-k) and with a radius r.

Answer:

the same area as

Step-by-step explanation:

When a circle is translated and reflected, the center of the circle will change; however, its area, circumference, radius and diameter remain the same.

This is so because, translation and reflection only affect the positioning of the circle not the size.

Considering the above analysis, we can conclude that option d answers the question correctly.

Answer:

.75 or 3 quarters

Step-by-step explanation:

4.65 - 3.90 =.75 or 3 quarters

Answer:

129

Step-by-step explanation:

If three lines CD, CE and CF extend from point C, then the following addition postulate is true;

<DCE + <ECF = <DCF

If the space between line C D and C E is 75 degrees, then <DCE =  75

If the space between lines C E and C F is 54, then <ECF = 54.

Substitute the given values into the expression above will  give;

<DCF =<DCE + <ECF

<DCF  = 75+54

<DCF  = 129

Hence the measure of <DCF  is 129°

Step-by-step explanation:

25/2*4/15

100/30

10/3

=0.3

Answer:

Step-by-step explanation:

The sum of three consecutive even integers is 108. What is the largest number? Explanation: Three consecutive even integers can be represented by x, x+2, x+4.

Answer:

19/40 OR 0.475 OR 47.5%

Step-by-step explanation:

The probability of an event is calculated by dividing the total number of 'favorable outcomes' by the number of total outcomes. Here, the number of 'favorable outcomes' is the number of students who play tennis, so 19. The total number of outcomes is 40 as there are 40 students. Therefore the probability a student plays tennis is 19/40, or 0.475 or 47.5%.

Hope this helped!

Answer:

Step-by-step explanation:

From the question,

Therefore, Elena lives 1/2 of 5 miles away from school.

1/2 of 5 miles = 2.5 miles

Hence, Elena lives 2.5 miles away from school.

Since each bottle contain 1/2 liter of water, then

The total liters of water is (1/2 × 5) liters

1/2 × 5 = 2.5 liters

Hence, the total liters of water is 2.5 liters

To determine how many pieces of rope of length 1/2 meter he can cut,

Number of pieces of rope of length 1/2 meter that can be cut is 5 meter ÷ 1/2 meter

5 meter ÷ 1/2 meter = 10

Hence, he can cut 10 pieces of rope of length 1/2 meter.

To determine what fraction of her goal that is,

First, she ran 1/2 mile out of 5 miles.

The fraction of her goal she ran is 1/2 mile ÷ 5 miles

1/2 mile ÷ 5 miles = 1/10

Hence, the fraction of her goal she ran is 1/10.

Answer:

i need points :)

Step-by-step explanation:

Answer:

I believe the answer is option B because I am right. Haha trust me.

Step-by-step explanation:

Answer:

247

Step-by-step explanation:

1,4,11,26,57,120. see the pattern that emerges from the series:

4–1 = 3; 3–1 = 2 = 2^1

11–4 = 7; 7 - 3 = 4 = 2^2

26 - 11 = 15; 15 - 7 = 8 = 2^3

57 - 26 = 31; 31 - 15 = 16 = 2^4

120 - 57 = 63; 63 - 31 = 32 = 2^5

so the next number should be 64+63 = 127+120 = 247.

check: 247–120 = 127; 127–63 = 64 = 2^6. correct.

so the next number is 247. 2^n+(n-1)

Given sequence;

1, 4, 11, 26, 57, 120, _

The missing term  =?

Solution;

We need to find the relationship between each term and then we can find the missing term;

      1, 4, 11, 26, 57, 120, _ ;

 let us start with the first two;

       3 x 2 + 1  = 7 + 4  = 11

       7 x 2 + 1  =  15 + 11 = 26

       15 x 2 + 1 = 31 + 26 = 57

       31 x 2 + 1 = 63 + 57 = 120

       63 x 2 + 1 = 127  + 120 = 247

        We see this pattern and can conclude that the missing term is 247

Answer:

Y=1/2x-2

Step-by-step explanation:

Answer:

-9x - 14y

Step-by-step explanation:

Step 1: Write expression

(-8x - 9y) + (-x - 5y)

Step 2: Combine like terms

-9x - 14y

Answer:

12

Hope this helps! -xox

Answer:

thats soooo easy

Step-by-step explanation:

just do it

Answer:

Angle 5! Hope this helps :)

Step-by-step explanation:

Alternate interior angles.

Answer:

prostokąt i kwadrat

Answer:  2. (4-2) x4 =8

               3. (7-1) * 6 = 36

                4. 4+ 3+ 4 = 11

               5. (15 x2) * -3 = -90

                6. 10 * (-3) x19 - 8 = -578  

Hope that helps

Step-by-step explanation:

Please Excuse My Dear Aunt Sally

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Answer:

Initial temperature of the chemical = 97°

Step-by-step explanation:

Time             Temperature              Difference

4                          89.5                               -

10                        78.25              78.25 - 89.5 = -11.25

16                        67.00              67 - 78.25 = -11.25      

There is a common difference of -11.25 in each successive term.

Therefore, cooling of a chemical represents a linear function.

Let the function representing temperature is,

f(t) = at + b

Where 'a' = rate of change in temperature

b = initial temperature

t = time

Now 'a' = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex] = [tex]\frac{78.25-89.5}{10-4}[/tex]

        a = -1.875

f(t) = -1.875t + b

For t = 4 and f(t) = 89.50,

89.50 = -1.875(4) + b

b = 97

Therefore, function representing the cooling of chemical is,

f(t) = -1.875t + 97

And the initial temperature of the chemical was 97° when it was poured into the beaker.