may I get some help? ​

Answer:

20 + 24 = 44

Hoped this helped :)

The equations are x + y = 44 and y = 2x + 2. Then the value of the two numbers is 14 and 30.

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The sum of the two numbers is 44. One number is 2 more than twice the other.

Let the two numbers be 'x', 'y' and y > x. Then we have

x + y = 44             ...1

y = 2x + 2            ...2

From equations 1 and 2, then we have

x + 2x + 2 = 44

3x = 42

x = 14

Then the value of 'y' is calculated as,

y = 2 (14) + 2

y = 28 + 2

y = 30

The equations are x + y = 44 and y = 2x + 2. Then the value of the two numbers is 14 and 30.

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Sam had 85$

James has 240+30=270 then 270/2 is 135

And because mom gave 50$ to sam subtract 50 135-50= 85 so sam had at first 85$

Final answer:

Sam had $170 at first given all the conditions.

Explanation:

Let's assume Sam had x dollars at first. Since James had $240 more than Sam at first, this means James had x + $240. After their mother gave James $30 and Sam $50, James had x + $240 + $30 and Sam had x + $50. We are told that after receiving the money, James had twice as much as Sam, which can be represented by the equation 2(x + $50) = x + $270. Solving for x, we get x + $100 = x + $270.

Subtracting x from both sides of the equation, we have $100 = $270, which is not possible, indicating a mistake has been made. We should redefine our equation as 2(x + $50) = (x + $240) + $30. Solving this correct equation, we get 2x + $100 = x + $270. Subtracting x and $100 from both sides, we find that x = $170. Therefore, Sam had $170 at first.

Answer:

pi/4

Step-by-step explanation:

The surface area of a sphere is given by

SA = 4 pi r^2

We know the radius is 1/4

SA = 4 * pi (1/4)^2

SA = 4 * pi (1/16)

     = pi/4

ça dépend de comment tu apprend le mieux. Si tu ne sais pas, essaye de: (puis regarde ensuite laquelle a été la plus utile)

- Faire des résumés de cous écrits

- Enregistrer ton cours puis l'écouter

- Faire des schémas si possible

- Réciter ton cours ou le lire à voix haute.

Si c'est pour la physique chimie que tu parles, déjà il faut d'abord comprendre c'est le plus important par exemple a chaque bilan que tu as noté tu prends une feuille et tu marque ce que tu as compris et ce que tu n'as pas compris ensuite si tu n'arrives pas trop tu peux regarder des vidéos pour t'expliquer et une fois que tu as tout compris tu récites.

Pour l'oral il te faut:

- avoir une bonne prononciation- intonation.

- si c'est un dialogue

le connaître par coeur et bien le jouer.

Je pense qu'il faut que tu t'entraine faire attention a la ponctuation ne pas oublier les majuscules et l'alinéa au début souvent et ne pas oublier les accords et fais attention au exceptions puis a la fin RELIE TOI c'est important pour savoir si ta pas fais d'erreur ou encore oublié des mots puis concentre toi pour éviter des fautes bêtes et revoie les règles éventuelles que tu as déjà vu  

Réviser à l'avane, et revoir tous les soirs.

- Pareil, la réviser tous les soirs, à force, elle rentre dans le crane

- Décrire d'abord ce qu'on voit en 1er, puis les détails, et surtout, tout expliquer

- Je n'ai pas trop compris ta dernière question, mais je suppose que tu parles du vocabulaire .  Il faut apprendre ceux que tu as écris sur ton cahier, et ceux de ton manuel .

Je te conseille de faire des fiche (les britol), avec des couleurs tout ça, ça permet de mieux apprendre . ;)

Essaye de réssiter l'essentiel à l'écrit, c'est trè efficace .

To learn effectively, prepare your materials, actively engage with the content, understand underlying concepts, use visual aids, practice, teach others, manage time, review regularly, stay organized, maintain a healthy lifestyle, and adopt a positive mindset.

Learning your lesson effectively requires a structured and proactive approach. Here's how to do it:

1. Preparation: Begin by organizing your study materials, ensuring you have access to textbooks, notes, and any necessary resources. Find a quiet and comfortable study environment that minimizes distractions.

2. Active Engagement: Avoid passive reading or rote memorization. Instead, actively engage with the material. Summarize key points in your own words, ask questions, and create flashcards or mind maps to aid comprehension.

3. Conceptual Understanding: Strive to understand the underlying concepts rather than just memorizing facts. If you can explain a concept to someone else, it's a sign you've grasped it.

4. Visual Aids: Utilize visual aids like diagrams, charts, and graphs to help visualize complex information and enhance understanding.

5. Practice and Application: For subjects like math or science, practice problems and exercises are essential. Repetition and application help reinforce learning.

6. Teaching Others: Teaching someone else what you've learned can solidify your own understanding and highlight areas where you may need further clarification.

7. Effective Time Management: Allocate specific time slots for studying, and take regular breaks to maintain focus. Short, concentrated study sessions are often more productive than lengthy, distracted ones.

8. Regular Review: Periodically review what you've learned to reinforce your memory. Self-quizzing and practice tests are effective tools for self-assessment.

9. Stay Organized: Keep your study materials and notes well-organized. A clutter-free study space promotes concentration and efficiency.

10. Healthy Lifestyle: Prioritize a healthy lifestyle, which includes getting enough sleep, maintaining a balanced diet, and staying hydrated. Physical and mental well-being are vital for effective learning.

11. Positive Mindset: Maintain a positive attitude. If you encounter challenges, view them as opportunities for growth. Seek assistance when needed and stay persistent.

Remember, different individuals have different learning styles. Experiment with various methods to discover what works best for you. Consistency and dedication are essential for successful learning.

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The probable question may be:

Comment on how to learn your lesson?

Please put the picture so I can answer the question

Answer: E

I'm not completely sure, but I tried.

Answer:

The inequality is [tex]c+2< 1[/tex]

Step-by-step explanation:

we know that

In the figure, the value of c is less than -1

so

[tex]c< -1[/tex]

Adds both side +2

[tex]c+2< -1+2[/tex]

[tex]c+2< 1[/tex]

Answer:

The inequality is c+2< 1

Step-by-step explanation:

Answer:

1/1, 1.0, 100%

Step-by-step explanation:

There are only seven days in a week, so no matter which day you start on, the next seven days will always include a Friday.

Answer:

30 m

Step-by-step explanation:

Answer:

2 m per second or it could also be 120 m per minute or you could also say 7200 m per hour all of the above are correct but it just depends on whether your teacher wants it to be converted into minutes seconds hours or days.

Step-by-step explanation:

The distance between the points (4,2) and (-8,7) is found by using the distance formula derived from the Pythagorean theorem. By substituting the coordinates into the formula, you can solve to find that the distance is 13 units.

The best way to find the distance between the points (4,2) and (-8,7) is to use the distance formula. The distance formula is derived from the Pythagorean theorem and is defined as follows:

 √[(x2-x1)² + (y2-y1)²]

Here, (x1, y1) and (x2, y2) are the coordinates of the two given points. For your points, x1=4, y1=2, x2=-8, y2=7.

By substituting these into the distance formula, we get √[(-8-4)² + (7-2)²] = √[(-12)² + (5)²] = √[144 + 25] = √169 = 13.

So, the correct answer is A. 13. Therefore, the distance between the points (4,2) and (-8,7) is 13 units.

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Answer:

The number 4 is the first term of the sequence

Step-by-step explanation:

we know that

Counting backwards is when the numbers are count in reverse sequence

Is also know as 1 less

In this problem the sequence of counting backwards from 5 is equal to

4,3,2,1,0

therefore

The number 4 is the first term of the sequence

The correct option is B.

The equation is B. 4c + 70 = 7c + 160, where c represents the number of candles sold by each girl.

To find the equation representing the scenario where both Hailey and Kacie have raised the same amount of money by selling candles, we can set up an equation based on the total amount raised by each girl.

Let's represent:

- Hailey's total amount raised as H

- Kacie's total amount raised as K

- The number of candles each girl sells as c

Given:

- Hailey's total amount raised, H = $160

- Kacie's total amount raised, K = $70

The equation representing the scenario where both Hailey and Kacie have raised the same amount of money by selling candles is:

4c (Hailey's selling price per candle) = 7c (Kacie's selling price per candle)

So, we have:

4c = 7c

To solve for c, we need to make the total amounts equal on both sides. We already have the total amounts raised by each girl:

Total amount raised by Hailey = $160

Total amount raised by Kacie = $70

Now, let's set up the equation:

4c (for Hailey) = 7c (for Kacie)

4c - 7c = 160 - 70

-3c = 90

Now, divide both sides by -3 to solve for c:

c = -90 / -3

c = 30

So, each girl needs to sell 30 candles to raise the same amount of money.

Therefore, the correct equation representing the scenario is:

B. 4c + 70 = 7c + 160

The complete question is here:

Hailey and Kacie are selling candles to raise money.

• Hailey is selling candles for $4 each and has already raised $160.

• Kacie is selling candles for $7 each and has already raised $70

Which equation can be used to find c, the number of candles each girl needs to sell so that the total amount raised is the same for both Hailey and Kacie?

A. 4c+7c=160+70

B. 4c+70=7c+160

C. 4c+160=7c+70

D. 4+160=7c+70c

The vertices of the image triangle ABC, after reflecting across the line (y = -1), are A' (4, 5), B' (1, 6), and C' (2, 3).

To find the image of the triangle ABC after a reflection across the line (y = -1), you can use the formula for the reflection of a point across a line.

The formula for the reflection of a point (x, y) across the line (y = mx + b) is given by:

[tex]\[\left(\frac{{x - m(y - b)}}{{1 + m^2}}, \frac{{y - m(x - a)}}{{1 + m^2}}\right)\][/tex]

In this case, the line of reflection is (y = -1), so (m = 0) and (b = -1). Therefore, the formula simplifies to:

[tex]\[\left(x, \frac{{y + 2}}{{1}}\right)\][/tex]

Now, apply this formula to each vertex of triangle ABC.

1. For point A(4, 3):

[tex]\[A' = \left(4, \frac{{3 + 2}}{{1}}\right) = (4, 5)\][/tex]

2. For point B(1, 4):

[tex]\[B' = \left(1, \frac{{4 + 2}}{{1}}\right) = (1, 6)\][/tex]

3. For point C(2, 1):

[tex]\[C' = \left(2, \frac{{1 + 2}}{{1}}\right) = (2, 3)\][/tex]

So, the vertices of the image triangle after the reflection across the line (y = -1) are A'(4, 5), B'(1, 6), and C'(2, 3).

there you go .............

Final answer:

The expression that includes 3x and ¼ should be written as 3x + ¼. Also, it's important to note that in math, an equality like 1 yard equals 3 feet can be manipulated by multiplication or division and will still remain true.

Explanation:

It seems there's a typo in the expression you've provided (3x 2 1/4). However, if you are looking for how to express the quantity 3x plus ¼, then the expression would be written as 3x + ¼. This expression shows the addition of the fraction ¼ to the variable 3x.

Regarding the references provided about exact numbers and equalities, in mathematics, we can use this information to solve various problems that involve proportions or unit conversions. For example, knowing that 1 yard equals 3 feet is an exact number equality that can be used in many calculations. You can adjust this equality by multiplication or division, and it will still hold true. Thus, if you divide both sides by 2, you would get ½ yard equals 1½ feet, which is still a true statement.

Answer:

150 because 50 times 3 equals 150

Answer:

13

Step-by-step explanation:

12+18+13+16+6=65

Then divide by how many of them there are (5).

65/5=13

The average age will be 13 years

In order to find the average of quantities we use the following formula

So putting the value

Average age = (12+18+13+16+6) / 5

Average age is 13

Answer:

Step-by-step explanation:

The easiest way to do this is to multiply

64 * 16 = 1024

And take the square root of that number

√(1024) = 32

Another way to do this is

√64 * √16

= 8 * 4

= 32

Answer:

W(x) = $50 + ($14/hr)x

Step-by-step explanation:

Let W(x) represent Wendy's earnings, and x the # of hours she worked.

Then W(x) = $50 + ($14/hr)x

Answer:

The cost of the bracelet was [tex]\$6[/tex]

Step-by-step explanation:

Let

x------> amount of Carla's savings

y-----> the cost of bracelet

we know that

[tex]y=\frac{2}{5}x[/tex] -----> equation A

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

so

[tex]9=\frac{3}{5}x[/tex] ----> solve for x

[tex]x=9*5/3=\$15[/tex]

substitute the value of x in the equation A and solve for y

[tex]y=\frac{2}{5}(15)=\$6[/tex]

Answer:   $6

Step-by-step explanation:

To find out how much Carla's bracelet cost, we can start by calculating how much of her savings she spent on the bracelet.

We know that Carla spent two-fifths of her savings on the bracelet, and she had $9 left over. This means that the amount she spent on the bracelet is equal to three-fifths of her savings, since she had $9 left over.

To find the value of three-fifths of Carla's savings, we can set up an equation:

$\frac{3}{5} \times \text{savings} = 9$

To solve this equation, we can multiply both sides by $\frac{5}{3}$ to isolate the variable:

$\text{savings} = \frac{9 \times 5}{3} = 15$

So Carla's total savings is $15.

Now we can find the cost of the bracelet by multiplying Carla's savings by the fraction she spent:

$\frac{2}{5} \times 15 = 6$

Therefore, Carla's bracelet cost $6.

Answer:

25

Step-by-step explanation:

The focus is from the vertex is 5m.

Two or more expressions with an Equal sign is called as Equation.

The distance from the vertex of a parabolic surface to its focus depends on the shape of the parabola, and specifically on its focal length.

The focal length of a parabolic surface is given by the equation:

f = d²/ (16w)

where f is the focal length, d is the depth of the parabolic surface, and w is the width of the parabolic surface.

Plugging in the given values, we get:

f = 1² / (16 x20)

= 1/320 km

To convert this distance to meters, we multiply by 1000:

f = 1/320 x 1000 = 3.125 meters

Therefore, the focus is from the vertex is 5m.

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Answer:  1b  2c  3e?  4d  5a

Step-by-step explanation:

There are 2 items that need to be checked.  

Midpoint:

[tex]Midpoint = \bigg(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\bigg)\\\\\\1)\ \bigg(\dfrac{-4+2}{2},\dfrac{-1+10}{2}\bigg)=\bigg(\dfrac{-2}{2},\dfrac{9}{2}\bigg)=(-1, 4.5)\implies \text{equation b}\\\\\\2)\ \bigg(\dfrac{1+7}{2},\dfrac{3-10}{2}\bigg)=\bigg(\dfrac{8}{2},\dfrac{-7}{2}\bigg)=(4, -3.5)\implies \text{equation c}\\\\\\3)\ \bigg(\dfrac{4-8}{2},\dfrac{-2+6}{2}\bigg)=\bigg(\dfrac{-4}{2},\dfrac{4}{2}\bigg)=(-2,2 )\implies \text{none of the equations}[/tex]

[tex]4)\ \bigg(\dfrac{6-4}{2},\dfrac{3-13}{2}\bigg)=\bigg(\dfrac{2}{2},\dfrac{-10}{2}\bigg)=(1, -5)\implies \text{equation d}\\\\\\5)\ \bigg(\dfrac{7-1}{2},\dfrac{5+8}{2}\bigg)=\bigg(\dfrac{6}{2},\dfrac{13}{2}\bigg)=(3, 6.5)\implies \text{equation a}[/tex]

Diameter:

distance between coordinates = 2√r² (from circle equation)

[tex]\text{formula for coordinates is: }d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\1)\ \text{Coordinates: } d=\sqrt{(-4-2)^2+(-1-10)^2}=\sqrt{36+121}=12.5\\b)\ \text{Circle: }2\sqrt{39.25}=12.5\\\\\\2)\ \text{Coordinates: } d=\sqrt{(1-7)^2+(3+10)^2}=\sqrt{36+169}=14.3\\c)\ \text{Circle: }2\sqrt{51.25}=14.3\\\\\\4)\ \text{Coordinates: } d=\sqrt{(6+4)^2+(3+13)^2}=\sqrt{100+256}=18.9\\d)\ \text{Circle: }2\sqrt{89}=18.9[/tex]

[tex]5)\ \text{Coordinates: } d=\sqrt{(7+1)^2+(5-8)^2}=\sqrt{64+9}=8.5\\a)\ \text{Circle: }2\sqrt{18.25}=8.5[/tex]

Check:

Graph to confirm your answers are correct (see attached)

Answer:

x=7

Step-by-step explanation:

✯Hii✯

↪  expand the brackets

↪  then solve normally

↪  x will be 7

❤Kathy❤

For this case we have the following equation:

[tex]\frac {2} {5} * (3r + 4) = 10[/tex]

We must clear the variable "r":

We multiply by[tex]\frac {2} {5} * (3r + 4) = 10[/tex] \ frac {5} {2} on both sides of the equation:

[tex]\frac {2} {5} * \frac {5} {2} (3r + 4) = 10 * \frac {5} {2}\\3r + 4 = \frac {50} {2}\\3r + 4 = 25[/tex]

We subtract 4 on both sides of the equation:

[tex]3r + 4-4 = 25-4\\3r = 21[/tex]

We divide between 3 on both sides of the equation:

[tex]\frac {3r} {3} = \frac {21} {3}\\r = 7[/tex]

Answer:

[tex]r = 7[/tex]

Step-by-step explanation:

Should be the third choice

Final answer:

The equation in standard form is -9x + 2y = -9.

Explanation:

To show the equation in standard form, we want to rearrange it so that the variables appear on one side and the constants on the other side. Let's start by distributing the 2 to both terms inside the parentheses:

10 - 2x + 2y = 3x + 1

Next, let's combine like terms by adding 2x and subtracting 10 from both sides:

-2x + 2y - 2x + 10 = 3x + 2x + 1 - 10

-4x + 2y + 10 = 5x + 1

Now, let's move the terms involving x to the left side and the constants to the right side:

-4x - 5x + 2y = 1 - 10

-9x + 2y = -9

Therefore, the equation in standard form is -9x + 2y = -9.

Answer: 38080 feet cubed

Step-by-step process:

60ft × 45 1/3ft = 2720ft squared

2720ft squared × 14ft = 38080 feet cubed

Answer:

C

Step-by-step explanation:

Adding the given sum

[tex]\frac{3}{4}[/tex] + [tex]\sqrt{64}[/tex]

= 0.75 + 8 = 8.75

A rational number can be expressed in the form

[tex]\frac{a}{b}[/tex] where a and b are integers

8.75 = [tex]\frac{875}{100}[/tex] ← a rational number

Answer: OPTION C

Step-by-step explanation:

Descompose 64 into its prime numbers:

[tex]64=2*2*2*2*2*2=2^6[/tex]

Rewrite the expression as following, and simplify:

[tex]=\frac{3}{4}+\sqrt{2^6}\\\\=\frac{3}{4}+2^3\\\\=\frac{3}{4}+8\\\\\frac{3}{4}+\frac{8}{1}[/tex]

Find the least common denominator:

 [tex]4=2*2*1=2^2*1\\1=1\\LCD=2^2*1=4[/tex]

Now you can make the addition:

[tex]\frac{(3*1)+(8*4)}{4}=\frac{3+32}{4}=\frac{35}{4}=8.75[/tex]

As 8.75 can be written as a fraction, then it is rational.

Answer:

Congruent

Step-by-step explanation:

If the faces weren't the same it'd be a rectangular prism :)

Just multiply across which is

8*5 = 40

21*16 = 336

40/336 = 5/42

This is correct answer

I hope this answer helped you!!! Thank you!!!

The product of the given expression will be 5/42.

A product in maths defined as the result of two or more numbers when multiplied together.

Given that, 8/21 * 5/16

8*5 = 40

21*16 = 336

40/336 = 5/42

Hence, The product of the given expression will be 5/42.

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Answer:

A. 1 inch

Step-by-step explanation:

10 feet = 120 inches.

Now figure out how many times 7 goes into 120, which is 17.

17x7in=119 inches. Therefore you have 1 inch left.

Let me know if you need me to explain in more detail, I kinda skimmed through it :)

ANSWER:

the capital of Nepal is Kathmandu.

~batmans wife dun dun dun...aka ~serenitybella

Hello, thanks for using Brainly.

The capital of Nepal is Kathmandu.  

Answer:

It is 68.2, thats the answer

Step-by-step explanation:

If you want no rounded just the main number it is 68

Answer: The answer is 68.2 but without decimals, rounding, mixed fractions, it would be 68 as the final answer :)

* Hopefully this helps:) Mark me the brainliest:)