Question- Solve for a
2a+b=x

Answer:

4 1/2 hours.

Step-by-step explanation:

If 1/2 an hour only used up 1/9 of her battery, 9, 1/2 would give us 9/2, which if you simplified it gets you 8 1/2 hours. Hope this helps! Have a great day!

Answer:

24 square units

Step-by-step explanation:

Answer:

you look at the numbers and add the other numbers.

Step-by-step explanation:

Answer:

98.9

Step-by-step explanation:

23x4.3=98.9 hours

Answer:

8x = 32

x = 4

y = 6

Step-by-step explanation:

2.5y + 3x = 27

5x – 2.5y = 5

_____________

8x = 32 (equation obtained after adding the two equations)

x = 32/8

x = 4

Plug x = 4 in 2.5y + 3x = 27

2.5y + 3*4 = 27

2.5y + 12 = 27

2.5y = 27 - 12

2.y5= 15

y = 15/2.5

y = 6

The equation results of adding the two equations is 8x = 32.

The solution to the system is (4, 6).

A straight line on the coordinate plane is represented by a linear function. As an illustration, the equation y = 3x – 2 depicts a linear function because it is a straight line in the coordinate plane.

Any function whose graph is not a straight line is said to be nonlinear. Any curve other than a straight line can be a graph of it.

An example of a non-linear function is a quadratic function.

Given, A system of linear equations in variables 'x' and 'y'.

2.5y + 3x = 27...(i) and 5x - 2.5y = 5...(ii)'

Reaaranging eqn(i) we have

3x + 2.5y = 27...(iii)

Adding (ii) and (ii) we have,

8x = 32.       (As + 2.5y and - 2.5y cancels)

x = 32/8.

x = 4.

Putting the value of 'x' in eqn(i) we have,

2.5y + 12 = 27.

2.5y = 15.

y = 6.

So, The solution to the system is (4, 6).

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Answer:

9 sides due to the fact, the prefix nona means nine or ninth

Answer:Nine sides

Step-by-step explanation: have a good day :)

Answer:

the cat is 27 inches tall

Step-by-step explanation:

the cat is 27 inches tall because when the flower cast is 8 inches but the flower itself is 3 inches you do 8-3=5 take 32-5 and you get 27inches

Answer:

(2x+7)(3x-2)

Step-by-step explanation:

Answer:

(3x-2) (2x+7)

Step-by-step explanation:

Break the expressions into two groups

(6x^2-4x)+(21+14)

Answer:

30 X .8=24 30-24=6 bill got 6 questions wrong

Answer:

slope is 2

Step-by-step explanation:

Answer:

see explanation

Step-by-step explanation:

z - w

= 1 - 3i - (- 2 + 5i) ← distribute parenthesis by - 1

= 1 - 3i + 2 - 5i ← collect like terms

= 3 - 8i

------------------------------------------------------------

z × w

= (1 - 3i)(- 2 + 5i) ← expand using FOIL

= - 2 + 5i + 6i - 15i² [ i² = - 1 ]

= - 2 + 11i + 15

= 13 + 11i

Answer:

78 i think

Step-by-step explanation:

Answer:

x = -11

Step-by-step explanation:

First, you have to isolate x to one side. To do this, you have to subtract 9 on both sides like this

x + 9 - 9 = -2 - 9

So this will now be

x = -11

There you go!

Answer:

x=-11

Step-by-step explanation:

x+9=-2

-9 -9

---------------

x=-11

As your question is missing some information, so after some research I was able to find the potential question you wanted to ask which is:

Point A is located at negative 4 over 6 and point B is located at negative 1 over 6. What is the distance between points A and B?

So, I am going to answer you based on the complete question I was able to find, which anyways would clear your concept.

Answer:

The distance between A and B will be:  [tex]\frac{3}{6}[/tex]

Step-by-step explanation:

From the question statement, it is clear that

Point A is located at negative 4 over 6 i.e. -4/6, and

point B is located at negative 1 over 6 i.e. -1/6.

As we know that we can determine the distance between two negative numbers on a given line by finding the distance by taking the absolute value of the difference between those numbers.

so,

Distance between A and B will be:

[tex]\left|-\frac{4}{6}-\left(-\frac{1}{6}\right)\right|=\left|-\frac{4}{6}+\frac{1}{6}\right|[/tex]

                     [tex]=\left|\frac{-4+1}{6}\right|[/tex]

                     [tex]=\left|-\frac{3}{6}\right|[/tex]

                     [tex]=\frac{3}{6}[/tex]

Hence, the distance between A and B will be:  [tex]\frac{3}{6}[/tex]

point A is located at -2, 5

point B is located at 5,5

the distance is 7 units

Answer:A

Step-by-step explanation:

|(1/2 + 7/8i)^n| is grater than 1.

A complex number is a number of the form a + bi, where a and b are real numbers ; This way, a complex number is defined as a polynomial.

Here, given that,

|(1/2 + 7/8i)^n|

where, n>1

then , we get,

|(1/2 + 7/8i)^n| is grater than 1.

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Answer:

17 t-shirts sold

Step-by-step explanation:

If we assume that we don't need t find the number of hats, then we can say that the profit from -tshirts would be $125 minus 40 or $85

Then we can write the following equation of x is the number of t-shirts:

5x = 85

If we solve by diving both sides of the equation by 5:

5x/5 = 85/5

x = 17 t-shirts sold

Answer:

You can put this solution on YOUR website!

the inequality is 500 - 25x >= 200

this insures that he will have at least 200 at the end of the summer.

subtract 200 from both sides of that inequality and add 25x to both sides of that inequality to get 500 - 200 >= 25x

simplify to get 300 >= 25x

divide both sides of that equation by 25 to get 300 / 25 >= x

simplify to get 12 >= x

12 >= x means x <= 12.

when x is smaller than or equal to 12, he will be guaranteed to have at least 200 in the account at the end of the summer.

when x = 12, what is left in the account is 500 - 25 * 12 = 200.

when x = 11, what is left in the account is 500 - 25 * 11 = 225.

when x = 13, what is left in the account is 500 - 25 * 13 = 175.

the maximum number of weeks he can withdraw money from his account is 12.

Step-by-step explanation:

Answer:

Step-by-step explanation:

the disc. is the part under the root in the general formula

which is equal b^2 - 4 x a x c

in this equation a = 1 " coefficient of x^2"

b = 0 "coefficient of x which isn't found here "

c = 12 " the absolute "

[tex]0^{2} - 4[/tex]×[tex]1[/tex]×[tex]12[/tex] = -4×12 = something i don't have a calculator

but it will be negative so the roots will be complex and unreal

:)

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[tex] \frac{3x}{x - 2} = 7 \\ [/tex]

Multiply sides by ( x - 2 )

[tex](x - 2) \times \frac{3x}{x - 2} = (x - 2) \times 7 \\ [/tex]

Simplification

[tex]3x = 7x - 14[/tex]

Subtract sides 7x

[tex] - 7x + 3x = - 7x + 7x - 14[/tex]

Simplification

[tex] - 4x = - 14[/tex]

Negatives simpliflies

[tex]4x = 14[/tex]

Divide sides by 4

[tex] \frac{4x}{4} = \frac{14}{4} \\ [/tex]

[tex]x = \frac{7}{2} \\ [/tex]

❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤

Answer:

x = [tex]\frac{7}{2}[/tex]

Step-by-step explanation:

Given

[tex]\frac{3x}{x-2}[/tex] = 7 ( multiply both sides by x - 2 )

3x = 7(x - 2) ← distribute

3x = 7x - 14 ( subtract 3x from both sides )

0 = 4x - 14 ( add 14 to both sides )

14 = 4x ( divide both sides by 4 )

[tex]\frac{14}{4}[/tex] = x , that is

x = [tex]\frac{7}{2}[/tex]

Answer:

[tex]{:}\leadsto [/tex][tex]\sf AB=\sqrt {(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf \sqrt {(9-2)^2+(25-1)^2}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf \sqrt {(7)^2+(24)^2}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf \sqrt {49+576}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf \sqrt {625}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf AB=25cm [/tex]

Answer:

D) (5x - 3) (25x^2+ 15x + 9)

Step-by-step explanation:

[tex]125 {x}^{3} - 27 \\ \\ = ( {5x)}^{3} - {(3)}^{3} \\ \\ = (5x - 3) \{(5x) ^{2} + 5x \times 3 + ( {3})^{2} \}\\ \\ = (5x - 3) \{25 {x}^{2} + 15x + 9\}[/tex]

Answer:

i feel like the third one would be the best

Step-by-step explanation:

i just feel as though its the most suitable one to pick

Answer:

Step-by-step explanation:

Slope-intercept form:

Given

Substitute values to find b:

Then the line is:

Answer:

the diameter of square 10× five ten of the fraction and 9+10=21 is to add the same and multiply the numbers by 100000

Step-by-step explanation:

9+10=21