There are three numbers. The first number is twice the second number. The third number is twice the first number. The sum of the three numbers is 112.

Answer:

see below

Step-by-step explanation:

5x - 6y = 17

5x - 17 - 6y = 0

5x - 17 = 6y

y = [tex]\frac{5x - 17}{6}[/tex]

Answer:

Hey there!

Original Equation: 5x-6y=17

Subtract 5x: -6y=17-5x

Multiply by -1: 6y=5x-17

Divide by 6: y= [tex]\frac{5x-17}{6}[/tex].

Let me know if this helps :)

Answer:

The mistake she made was ; She didn't change the sign when subtracting -3/4 from both sides

She wrote 5/4+3/4 instead of 5/4-3/4

Step-by-step explanation:

Correct solution:

[tex] \frac{3}{4} + m = \frac{5}{4} [/tex]

Subtract-3/4 from both sides

[tex] \frac{3}{4} - \frac{3}{4} + m = \frac{5}{4} - \frac{3}{4} [/tex]

Simplify

[tex]m = \frac{5}{4} - \frac{3}{4} \\ m = \frac{1}{2} [/tex]

The mistake Angela made was when she subtracted -3/4 from both sides, she didn't change the sign and She wrote 5/4 + 3/4 instead of 5/4-3/4.

Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.

The operator that performs the arithmetic operations are called arithmetic operators.

Operators which let do a basic mathematical calculation

+ Addition operation: Adds values on either side of the operator.

For example 4 + 2 = 6

- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.

for example 4 -2 = 2

We have given the expression as

⇒ 3/4 + m = 5/4

The mistake Angela made was when she subtracted -3/4 from both sides, she didn't change the sign.

She wrote 5/4 + 3/4 instead of 5/4-3/4

Here is the correct work :

Subtract 3/4 from both sides from the equation,

⇒ 3/4 + m - 3/4 = 5/4 - 3/4

⇒ m = (5 - 3)/4

⇒ m = 2/4

⇒ m = 1/2

Learn more about the arithmetic operations here:

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Answer:

  ∠CBD = 125°

Step-by-step explanation:

The angle sum theorem tells you that ...

  ∠ABC +∠CBD = ∠ABD

  8x -41° +9x +17° = 180° . . . . . . a "straight angle" has a measure of 180°

  17x -24° = 180° . . . simpify

  17x = 204° . . . . . . add 24°

  x = 12° . . . . . . . . . . divide by 17

Now the measures of the angles can be found from their expressions.

  ∠ABC = 8(12) -41° = 55°

  ∠CBD = 9(12) +17° = 125°

Answer: [tex]\frac{8}{n^{3} }[/tex]

Step-by-step explanation:

 the quotient of 8  and the cube of a number is 8 divided by the number cubed  where n is the number.

Answer:

Step-by-step explanation:

Idk

Answer:

I believe the answer is function

Step-by-step explanation:

Answer:

[tex] \boxed{ \bold{ \huge{\boxed{ \sf{x = 4}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{ - 8 - x = x - 4x}[/tex]

Collect like terms

⇒[tex] \sf{ - 8 - x = - 3x}[/tex]

Move 3x to left hand side and change it's sign

Similarly, move 8 to right hand side and change it's sign

⇒[tex] \sf{ - x + 3x = 8}[/tex]

Collect like terms

⇒[tex] \sf{2x = 8}[/tex]

Divide both sides of the equation by 2

⇒[tex] \sf{ \frac{2x}{2} = \frac{8}{2} }[/tex]

Calculate

⇒[tex] \sf{x = 4}[/tex]

Hope I helped!

Best regards!!

Answer: 12

Step-by-step explanation: 7+5

Answer:

The answer is No, they aren't proportionate

Step-by-step explanation:

Answer:

They are not.

Step-by-step explanation:

Answer:

7) refer to d=rt triangle so answer is t= d/r

8) rearrange by dividing so it should be PV/nR = T

9) move 5r to  other side which become 2p = q - 5r then divide by 2. final answer is p = q-5r/2

10) multiply both side by b/1 so b got cancel on left side

right side become c(b/1) which is same as cb

then you divide both side by c to isolate b on the right side

final answer is a/c=b

When solving polynomial equations, first set the equation

equal to zero, then check for a Greatest Common Factor.

Since there is no greatest common factor, this will make life a

little bit more difficult because we will have to factor the trinomial.

First, find all possible factors for constant term.

I have listed these in red below.

Make sure to reverse the factors since in each binomial,

the first term is different so we need to reverse the factors.

The factors of 5x² will just be 5x and z.

After finding factors for the constant and the leading

coefficient for your trinomial, we can eliminate some factors.

If you have an odd coefficient on the middle term,

you can eliminate any pairs of even factors.

So the group I crossed out in purple below will be eliminated.

Another strategy is to use factors a little closer together.

So I would go with the 4 and 3 group.

Surely enough, our trinomial does factor with the 4 and 3.

Now set the factored trinomial equal to 0.

Then use zero product property and you have your answer.

Answer:

-0.27

Step-by-step explanation:

5x^2=25x

25x+19x=44x

44x+12=0

     -12=0-12

44x=-12

44x/44=-12/44

x=-0.27

Answer:

K = 13.15 cm^2

Step-by-step explanation:

Sides:

a = 8 cm

b = 3.75631 cm

c = 7 cm

Angles:

A = 90.9699 °

B = 28 °

C = 61.0301 °

Other:

P = 18.7563 cm

s = 9.37816 cm

K = 13.1452 cm^2

r = 1.40168 cm

R = 4.00057 cm

Agenda: A = angle A

B = angle B

C = angle C

a = side a

b = side b

c = side c

P = perimeter

s = semi-perimeter

K = area

r = radius of inscribed circle

R = radius of circumscribed circle

Answer:

Step-by-step explanation:

You know that 9 = 10 - 1.

Then 9 of something is equal to 10 of it less one of it. Here, that "something" is four.

  [tex]\begin{array}{cl}9\times4&=10\text{ fours}-\boxed{1}\text{ four}\\&=\boxed{40}-4\\&=\boxed{36}\end{array}[/tex]

_____

Comment on this math

This illustrates a shortcut for multiplying by 9 that can be convenient for mental arithmetic. The idea is to multiply by 10, which just involves adding 0 (or moving the decimal point), then subtract the original number.

Answer: P= 2{(12x+7) + (9x+11)} or 42x + 36

Step-by-step explanation:

The formula for the perimeter of a rectangle is P=2(l+w)

P= 2{(12x+7) + (9x+11)}

Simplified to 42x + 36

Answer:

-20

Step-by-step explanation:

f(-1) = 7(-1) - 13

f(-1) = -20

Answer:

g(x) = x - 7

Step-by-step explanation:

g(x) is the same as saying "y".

you need to move the y-intercept down 7 units, therefore putting the term - 7 into the expression.

Answer:

g(x) = x-7

Step-by-step explanation:

First find f(x)

f(x) is the function  y =x

f(x) = x

g(x) = f(x) + C  C < 0 moves it down

We want to move it down 7 units

g(x) = f(x)  -7

g(x) = x-7

'dz' because d and z are different values.

Answer:

t-t

Step-by-step explanation:

Answer:

Yes, it's always positive

Answer:

true

Step-by-step explanation:

it's just the distance from zero so it has to be positive either you go negative or positive!

Answer:

see explanation

Step-by-step explanation:

Given that G is directly proportional to h then the equation relating them is

G = kh ← k is the constant of proportion

To find k use the condition h = 40 when G = 2200, then

2200 = 40k ( divide both sides by 40 )

55 = k

1

G = 55h ← equation of proportion

11

When h = 22, then

G = 55 × 22 = 1210 joules

111

When G = 3025, then

3025 = 55h ( divide both sides by 55 )

h = 55 m

Answer:

C

Step-by-step explanation:

Mean is all the numbers divided by the amount of numbers listed and Median is what ever number is in the middle (when in order of value). when there's not a exact middle number u add the two numbers in the middle and divide it by two

Answer:

(-3,-2)

Step-by-step explanation:

Starting at the point (1, 0)

Now we move don 2 units (so the y-value reduces in two units) making now the point (1,0-2)  which is (1, -2)

then we move to the left 4 units (so the x-value has now to be decreased in 4 units) making the point: (1-4, -2) which is (-3, -2)

Answer:

It would be -2,4.

Step-by-step explanation:

you start at (1,0) and go down 2 to -2 then left 4 you would land on -2,4

Answer:

[tex]\large\boxed{x^{36}}[/tex]

Step-by-step explanation:

Consider the properties:

[tex]\boxed{(x^a)^b=x^{a\cdot b}}[/tex]

[tex]\boxed{x^a \cdot x^b=x^{a+b}}[/tex]

[tex]\therefore (x^3)^6 \cdot (x^2)^9= x^{18} \cdot x^{18}= x^{36}[/tex]

Answer is 36

(x3)6 * (x2)9

x3*6x2*9

Answer:

the positive 17 is the problem. so it should be: -17 + (-31) = -48

Step-by-step explanation:

if 17 is positive, the equation is just: -14 = -48 (which isnt correct)

Answer: c

First you organize the numbers into order then you find the middle of both. The middle of Williams was 89. Then you do the same for Andres and you get 82. To get the difference of them both you have to subtract both of them to get 7 and that’s c.

Answer:

Examples of a plane would be: a desktop, the chalkboard/whiteboard, a piece of paper, a TV screen, window, wall or a door. Examples of lines would be:

To solve such examples of we need to know about points, lines, and planes.

A Point can be described as an exact location in space but it has no size. A point is represented by a dot which shows the point in pictures and diagrams.

In the diagram, a line is represented by a capital letter with an arrow on the letters, such as [tex]\underset{AB}{\rightarrow}[/tex].

The examples of a point are a ball, a ball bearing, pin location on a map, etc.

A line is drawn when an infinite number of dots are connected together in both directions extended forever.

Examples of a line are a thread string, a wire, etc.

A plane is drawn when an Infinitely number of intersecting lines extend forever in all directions.

In the diagram, a point is represented by a dot with capital letters.

Examples of a plane are a blackboard, a movie screen, etc.

Learn more about point, lines, and plane:

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Answer:

four

Step-by-step explanation:

2(4)=8

Answer:23 mm

Step-by-step explanation:

add both 15 and 8 because they are as long as the one on the bottom

Answer:

70

Step-by-step explanation:

find the small unknown side by subtracting the two sides across from it. 12-7=5. add the 15 and 8 for the big unknown side. 15+8=23. add all the sides. 12+15+7+8+5+23=70