Need help on this please

Answer:

1. 5

2. 5

3. -3

4.y= -1

5. 5

Step-by-step explanation:

1.)x- 2y= -25 ; y=3x

x-2(3x)=(-25)

x-6x=(-25) ; -5x=(-25) ; x=5

2.) 5x+3y =40; x=y

8y=40; y=5

3.) 4x-3y= -27; x=3y

4(3y)-3y= -27; 12y-3y=-27; 9y=-27; y=-3

4.)x-y=9; x=-8y; -8y-y=9; -9y=9; y=-1

5.) 2x+2y=30; y=2x ; 2x+2(2x)=30; 6x=30; x=5

Answer:

114

Step-by-step explanation:

A= length x width

A= 6x9

A=114

Answer:

25

Step-by-step explanation:

5 + 5 + 5 + 5 + 5 = 25

Answer:

25

Step-by-step explanation:

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Answer:

[tex] \sqrt{2} \sin \: x + c[/tex]

Step-by-step explanation:

[tex] \int \sqrt{1 + \cos(2x)} \: \: dx \\ \\ = \int \sqrt{1 + 2\cos ^{2}x - 1 } \: \: dx \\ \\ = \int \sqrt{ 2\cos ^{2}x } \: \: dx \\ \\ = \int \sqrt{ 2 }\cos x \: \: dx \\ \\ = \sqrt{ 2 }\int \cos x \: \: dx \\ \\ = \sqrt{2} \sin \: x + c[/tex]

Answer: (-4,0) and (4,0)

Step-by-step explanation:

Just look where the zeros are in the y (fx) column that corespont the the x.

Step-by-step explanation:

total is 180* subtract 180by 149 u get x   180-149=31*

Answer:

t≈6

Plug values into A=P(1+r/n)^nt

Answer:

1/41416353 probability of all five numbers and the mega number matching the winning numbers

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question, the order of the numbers is not important. So we use the combinations formula to solve this question.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

Probability of the five numbers matching:

Desired outcomes: 1 -> the matching numbers

Total outcomes: 5 from a set of 47. So

[tex]T = C_{47,5} = \frac{47!}{5!(47-5)!} = 1533939[/tex]

Probability:

[tex]p_{S} = \frac{1}{1533939}[/tex]

Probability of the mega number matching:

1 from a set of 27. So

[tex]p_M = \frac{1}{27}[/tex]

Probability of both matching:

Independent events, so we multiply the probabilities:

[tex]p = p_S*p_M = \frac{1}{1533939}*\frac{1}{27} = \frac{1}{41416353}[/tex]

1/41416353 probability of all five numbers and the mega number matching the winning numbers

Answer:

18/25

Step-by-step explanation:

Answer:

30 mg

Step-by-step explanation:

Flow rate of dopamine per hour:

Flow rate of dopamine per hour =  (95g)*(30ml/hr) / 95ml

Flow rate of dopamine per hour = 30mg

23=d+q, d=23-q

350=10d+25q, using d from above

350=10(23-q)+25q

350=230-10q+25q

120=15q

q=120/15

q=8, and since d=23-q

d=23-8=15

So there are 15 dimes and 8 quarters

Answer:

54cm

Step-by-step explanation:

because a trangle is half of a square so you have to mutiple by 2 so 27 * 2 = 54 :)

Punto:

Línea:

Plano:

Superficie:

El punto es una entidad que tiene una posición, pero no tiene dimensiones (largo, ancho o alto). Por lo tanto, es de dimensión cero, es decir, adimensional. Contiene el significado de lugar, de existencia, pero no tiene elementos mensurables, es decir, no se puede medir.

En contextos geométricos, una línea es un cuerpo unidimensional de forma y longitud arbitrarias. Todos los objetos unidimensionales, como cuerdas, líneas rectas, mitades y perímetros, son líneas. Se cree que una línea se forma cuando un punto de dimensión cero se mueve en el espacio y forma una línea infinita de múltiples puntos.

Intuitivamente, el concepto de plano se puede describir como una superficie perfectamente recta (es decir, sin curvatura ni cavidad) y lisa, que tiene volumen cero y ocupa solo las dos dimensiones del espacio tridimensional.

La superficie de un objeto se refiere a una superficie bidimensional, que separa el objeto de otros objetos y del entorno. En topología, la superficie es una dimensión bidimensional.

Aprenda más sobre geometría en https://brainly.com/question/4637858

Answer:

angle 2 is 63 reason is interior angle

angle 3 is 117 corresponding angle

Answer:

measure 1 = 117 degrees

measure 2 = 180 - 117 = 63 degrees

i dont know he reason because i cant see the options

Step-by-step explanation:

its the ch eating off the principal test for me

Answer:

3

Step-by-step explanation:

The mode is the number that occurs most frequently in a set of numbers

Also:

I saw that this is your first question. Welcome to the Brainly community.

The mode of the data set 3, 3, 4, 5, 10 is 3

For given question,

We have been given a set of data.

3, 3, 4, 5, 10

The frequency of each value in the data set is:

Value        Frequency

  3                   2

  4                   1

  5                   1

  10                  1

We can observe that, 3 appears most frequently in a data set.

Therefore, the mode of the data set 3, 3, 4, 5, 10 is 3

Learn more about the mode of the data set here:

https://brainly.com/question/6813742

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Answer:

1/8a

Step-by-step explanation:

Answer:

you would divide

Step-by-step explanation:

325 ÷ 13= $25 a week

I hope this helped

Answer:

325 divided by 13 = 25

Step-by-step explanation:

Answer:

50(1.25p) and 50(0.25p + 1.00)

Step-by-step explanation:

They both equal the same answer.

50(1.25p) = 62.5

50(0.25p + 1.00) = 62.5

when in parentheses, you multiply

50 * 1.25 = 62.5

50 * 0.25 + 1.00 = 62.5

The expression for the given scenario is 50(0.25p+1.00). Therefore, option A and C are the correct answers.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

Given that, Mr. Hamilton sponsors the creative writing club.

He went to a local printing shop that charges $0.25 per page in the book and $1.00 to bind the pages together.

The booklet Mr. Hamilton is making has p pages, and he plans to make 50 booklets.

So, the expression is 50(0.25p+1.00)

= 12.50p+50.0

Therefore, option A and C are the correct answers.

To learn more about an expression visit;

https://brainly.com/question/28170201.

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Answer:

[tex]Ratio = 9 :80[/tex]

Step-by-step explanation:

Given

[tex]A_1 = 18ft^2[/tex] --- Area of smaller rectangle

[tex]A_2 = 160ft^2[/tex] --- Area of bigger rectangle

Required

Determine the area of the areas.

The ratio is calculated by the dividing the areas of rectangles.

[tex]Ratio = \frac{A_1}{A_2}[/tex]

Substitute values for A2 and A1

[tex]Ratio = \frac{18ft^2}{160ft^2}[/tex]

[tex]Ratio = \frac{18}{160}[/tex]

Simplify the fraction

[tex]Ratio = \frac{9}{80}[/tex]

Represent as ratio

[tex]Ratio = 9 :80[/tex]

Hence, the ratio of the rectangles is 1 to 9

Answer:

11 h and 32 m is the answer

Answer:

Step-by-step explanation:

Answer:

The answer is unidentified

Step-by-step explanation:

I checked ;)

[tex]correct is it Because Correct[/tex]A.

Answer:

The answer of your question : 85.92 divided by 4 is equal to (21.48)

Answer:

( -0.5 , 6.5 )

Step-by-step explanation:

B!!!!!!!!!!!!!!!!!!!!!!

hope this helps

Answer:

20 cents

Step-by-step explanation:

Answer:

The cost of 1 kg is AED1.49

Step-by-step explanation:

Given

[tex]Cost = AED7.75[/tex]

[tex]Weight = 5.2kg[/tex]

Required

Determine the cost of 1 kg grape

To do this, we simply divide the cost of 5.2kg by 5.2kg.

i.e.

[tex]Unit\ Cost = \frac{AED7.75}{5.2kg}[/tex]

[tex]Unit\ Cost = AED1.49/kg[/tex] -- approximated

So, the cost of 1 kg is AED1.49

Answer:

I think option c is answer

Answer:

9(2-3) -5(8)= -49

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