What is the answer to 4x+8+6x+12=85

Answer:

Step-by-step explanation:

let the number of children be x

and the number of adults be y

so

7x+12y=236-----1

and

14x+7y=217------2

equating both 1 and 2 we have

7x+12y=236-----1

14x+7y=217------2

multiply 1 by 2

subtract 2 from 1 we have

  14x+24y=472-----3

 - 14x+7y=217------2

    0x+17y=255

17y=255

y=255/17

y=15

put y=15 in eqn 1 we have

7x+12y=236-----1

7x+12*15=236-----1

7x+180=236-----1

7x=236-180

7x=236-180

x=56/7

x=8

therefore a child will cost $8 and adult will cost $15

Answer:

23.9

Step-by-step explanation:

Answer:

Pretty sure we would just say 3+x.

Step-by-step explanation:

As angle 6y° and angle( 13y - 10 )° are interior angles on the same side of transversal their sum will be equal to 180° .

Then :-

[tex]6y + 13y - 10 = 180[/tex]

[tex] 19y - 10 = 180[/tex]

[tex]19y = 180 + 10[/tex]

[tex]19y = 190[/tex]

[tex]y = \frac{190}{19} [/tex]

[tex]y = 10[/tex]

Which means :-

= 13y - 10

= 13 × 10 - 10

= 130 - 10

= 120°

Then angle 6y :-

= 6 × 10

= 60°

As angle 60° and angle 9x + 12° are a linear their sum will also add up to form 180° .

Which can be written as :-

[tex]60 + 9x + 12 = 180[/tex]

[tex]9x + 72 = 180[/tex]

[tex]9x = 180 - 72[/tex]

[tex]9x = 108[/tex]

[tex]x = \frac{108}{9} [/tex]

[tex]x = 12[/tex]

Then :-

= Angle 9x + 12

= 9 × 12 + 12

= 108 + 12

= 120°

Therefore , the value of y = 10 and the value of x = 12 .

Answer:

18n-42 should make it as simple as it can be.

Answer:

-8

Step-by-step explanation:

-31 and +31 cancel each other out leaving you with -8

Answer:

i- um chile anywaysssss

Answer:

The common multiples of 3 and 7 up to 70 are 21, 42, and 63. A multiple of a number a is a number that is the product of a and another number.

Step-by-step explanation:

The common multiples of 3 and 7 up to 70 are 21, 42, and 63. A multiple of a number a is a number that is the product of a and another number.

Answer: The triangles are similar

======================================================

Explanation:

The square markers show that

angle RPQ = angle RST = 90 degrees

So that's one pair of congruent angles. Another pair of congruent angles is what you see in the diagram below. The angles marked in red are congruent alternate interior angles. Alternate interior angles are congruent when we have parallel lines like this.

Since we have two pairs of congruent angles, we can use the AA (angle angle) similarity theorem to prove the triangles congruent.

Answer:

Triangle PQR and RST are both right triangles but they do not share the same  side lengths. They also share the same point R, so I would say that they are similar only because they are both right triangles.

Step-by-step explanation:

Answer:

Hope this help..

Step-by-step explanation:

Hope this helpp..

Answer:

1.15x10 to the power of 7

Answer:

1.15×10⁷

Step-by-step explanation:

that's the answer

If the sum of 5 and x is 20, then the value of x will be 15.

It is given that the sum of 5 and x is 20.

Mathematically, it can be written as:

5 + x = 20

We have to find the value of x.

In order to find the value of x we need to separate the variable and constant.

For this, subtract 5 from both the sides:

5+x-5 = 20-5

5-5 +x = 20-5

Then, solve the operation of subtraction on both the sides of above equation.

0+x = 15   -------(A)

Since, when we add 0 to any quantity, the result will be this quantity itself.

So, 0+x = x -------(B)

From (A) and (B), Sine the left sides of equation (A) and (B) are equal, then the right sides will also be equal.

Equation right sides of (A) and (B). We have:

x = 15

Hence, the value of x is 15.

Learn more about sum of variable and constants  here:

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Answer:

-48

Step-by-step explanation:

Multiply all numbers to get -48

Answer: anything honestly

Step-by-step explanation:I don't think it costs anything you only have to pay if you want specific accessories

Answer:

It is better on an iPhone and the game is free. Also, it is really personal preference!

Step-by-step explanation:

Answer:

A. 18x - 3y = 6

Step-by-step explanation:

By taking 3 common from the terms 18x and 3y we get,

3 (6x-3y) = 6

or, 6x - y = 6/3

or, 6x - y = 2

And,

The equation becomes,

y = 6x - 2

The equation has exactly one solution in common with the equation y=6x-2 will be 18x - 3y = 6. The correct option is A.

A finite set of equations for which common solutions are sought is referred to in mathematics as a set of simultaneous equations, often known as a system of equations or an equation system.

An equation is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

By taking 3 commons from the terms 18x and 3y we get,

3 (6x-3y) = 6

6x - y = 6/3

6x - y = 2

The equation becomes,

y = 6x - 2

Therefore, the equation has exactly one solution in common with the equation y=6x-2 will be 18x - 3y = 6. The correct option is A.

To know more about equations follow

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Answer:

156

Step-by-step explanation:

Answer:

its 1

Step-by-step explanation:

i is always going to =1 no matter what is with it

unless you are taking the square root from it

I hope this helps you! :)

Answer:  The answer is  -i

Step-by-step explanation:

They are equal hope this helps

The answer is D) 10gh

Answer: I think the correct answer would be d

Step-by-step explanation:

Answer:

you forgot the number before times

Step-by-step explanation:

Answer:

Step-by-step explanation:

4

Answer:

(c-k)÷3=x

Step-by-step explanation:

subtract the k first on both sides, cancelling the one on the left but adding a -k on the right.

than divide both sides by 3, cancelling the 3 and adding a ÷3 outside the parantheses

Answer:

The last option

Step-by-step explanation:

The last option

Answer:

C

Step-by-step explanation:

Answer:

C. Have a good day. :)

Step-by-step explanation:

Answer:

Step-by-step explanations: