Please help me learn this

Answer:

I'll assume "S2x+3y=-12" is actually 2x+3y=-12 and that the question is to solve for x and y.

x = -(9/5)

y = -(14/5)

Step-by-step explanation:

2x+3y=-12

4x-4y=4

---

2x+3y=-12

8x+12y=-48  [Multiply the 1st equation by 4]

12x-12y=12   [Multiply the second equation by 3]

20x = -36     [Now we can add the two equations to remoce the y term]

x = -(36/20)  

x = -(9/5)       [The value for x]

====

2x+3y=-12        [Take either equation and s=use x=-(9/5) to find y]

2(-9/5)+3y=-12  

-(18/5) + 3y = -12

+ 3y = -12 + (18/5)

y = -4 + (6/5)

y = -(20/5)+(6/5)

y = -(14/5)          [This is the value of y that will work for both equations]

These equations both have the point (-9/5, -14/5) in common:  they intersect here.

This problem can also be solved by graphing each equation and finding the point they inersect on the graph (attached).

Answer:

m=-2

Step-by-step explanation:

7-4m-1=14

6-4m=14

Rearrange terms,

Subtract 6 from both sides of the equation,

the answer is m=-2

Answer:

Umm, do you have question choices?

Step-by-step explanation:

By the way I am really smart just need to see the answer choices!

Thanks

You're Funny

[tex]\leq 548\\ 686x^{2} 953[/tex]

Sorry I don't know

And I don't Care

I am just here to have fun

Yep that's it

BYE

Answer:

$49,592.50

Step-by-step explanation:

First, to find the total fee of application you times 910 by $1.75 which will give you

910 × 1.75 = 1592.5

Then you add 48,000 with 1,592.5

which will give you an answer of

48,000 + 1,592.5 = $49,592.50

:)

Answer:

4:3 and 3:4 I believe is the answer

Step-by-step explanation:

eye balled it

Answer:

the answer for the equation is 3

Answer:

8000 i think

200*360/1/9=8000

Step-by-step explanation:

Answer:

y=-1/2x+2

Step-by-step explanation:

2 = 0 +b

2=b

y=-1/2x+2

Answer:

y = -1/2x + 2

Step-by-step explanation:

Follow the y = mx + b. B stands for the y-intercept, which is 2 in this case. M stands for the slope, which is the constant -1/2. Pls brainliest i want to level up ty!!!!!

Answer:

If a line goes through both points, the slope of that line would be [tex]0[/tex].

Step-by-step explanation:

The slope of a line is equal to the ratio between the vertical change of this line "rise" and the corresponding horizontal change "run":

[tex]\begin{aligned}\text{slope} &= \frac{\text{rise}}{\text{run}}\end{aligned}[/tex].

If a non-vertical line goes through two distinct points [tex](x_{0},\, y_{0})[/tex] and [tex](x_{1},\, y_{1})[/tex] where [tex]x_{0} \ne x_{1}[/tex], the vertical change (rise) would be [tex](y_{1} - y_{0})[/tex]. The corresponding horizontal change would be [tex](x_{1} - x_{0})[/tex]. Thus, the slope of that line would be:

[tex]\begin{aligned}\text{slope} &= \frac{\text{rise}}{\text{run}} \\ &= \frac{y_{1} - y_{0}}{x_{1} - x_{0}}\end{aligned}[/tex].

In this question, [tex]x_{0} = 4[/tex] and [tex]y_{0} = 5[/tex] for the first point, whereas [tex]x_{1} = 3[/tex] and [tex]y_{1} = 5[/tex] for the second point.

The rise (vertical change) of this line from the first point to the second would be [tex](y_{1} - y_{0}) = 5 - 5 = 0[/tex]. The corresponding run (horizontal change) would be [tex](x_{1} - x_{0}) = 3 - 4 = -1[/tex].

Thus, the slope of this line would be:

[tex]\begin{aligned}\text{slope} &= \frac{\text{rise}}{\text{run}} \\ &= \frac{y_{1} - y_{0}}{x_{1} - x_{0}} \\ &= \frac{5 - 5}{3 - 4} \\&= \frac{0}{-1} \\ &= 0\end{aligned}[/tex].

In other words, the slope of this line is [tex]0[/tex]. Geometrically, a slope with a slope of [tex]0\![/tex] would be horizontal. The vertical coordinate of all points on such line would be the same ([tex]5[/tex] for points on the line in this question.)

Answer: The answer should be D

Answer:3−4x/7≤y≤−8+5x

Step-by-step explanation:

Answer: What is the distance formula is that it's the formula used in Mathematics such as Pre-Algebra, Algebra 1, Geometry, Algebra 2, Trigonometry, and Pre-Calculus, also Calculus to help you find the distance between 2 points in a coordinate plane or the length of a segment. How you do the distance formula is you subtract the 2nd x coordinate by the 1st one, next you add the 2nd y coordinate to the 1st one, then the answer you get you evaluate them using the exponent of 2, lastly you add that answer and square root the answer you get to the approximate or closest decimal or whole number.

[tex]~~~~~~ \textit{Simple Interest Earned}\\\\I = Prt\qquad\begin{cases}I=\textit{interest earned}\\P=\textit{original amount deposited}\dotfill & \$9500\\r=rate\to 2\%\to \frac{2}{100}\dotfill &0.02\\t=years\dotfill &5\end{cases}\\\\\\I = (9500)(0.02)(5)\implies \boxed{I = 950}[/tex]

Step-by-step explanation:

I think what is meant in the triangle ABC we have the three angles.

the sum of all angles in a triangle is airways 180 degrees.

so,

180 = A + B + C

180 = 42 + B + C

now, we know also that

B = 5×C

so, we can use that above

180 = 42 + 5×C + C

138 = 6×C

C = 138/6 = 23 degrees

B = 5×C = 5×23 = 115 degrees

Answer:

Step-by-step explanation:

25 for blue

42 for red

Answer:squere is 42 and triangle id 25

Step-by-step explanation:I now that squere 42 becuse if you add 42 plus 30 equels 72 and i now the triangle is 25 becuse 25 plus 25 equels 50

Answer:

Hotdog: $3

Soda: $2.50

Step-by-step explanation:

5H + 2S = 20

6H + 4S = 28

6H + 4(10 - 5/2H) = 28

6H + 40 - 10H = 28

6H - 10H =-12

H = 3

5(3) + 2S = 20

15 + 2S = 20

2S = 5

S = 2.5

Answer:

292.5

Step-by-step explanation:

calculations

45 percent of 650 Is 292.5

Answer:

hope it helps....

but sorry for rough handwriting

Answer:

I don't see anything here to help with

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Step-by-step explanation:

Step-by-step explanation:

deck means an amount of number

but lemme use dozen as an exmaple instead of deck

dozen means 12

so that would be 2/12

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

Explanation:

A cube has 6 identical faces, all of which are squares.

Each square has a side length of 8.5 cm, so its area is (8.5)^2 = 72.25 sq cm.

The overall surface area, aka the area of all 6 faces combined, is 6*72.25 = 433.5 square cm

Answer:

A=433.5cm²

Step-by-step explanation:

A=6a2=6·8.52=433.5cm²

Step-by-step explanation:

the quantity inside the parentheses is being multiplied by itself the number of times the outside exponent

Answer:

1

Step-by-step explanation:

5÷1000=0.005

0.005 ≈ 1 (1 is the nearest whole number)

Hope this helps!

The number 5 divided by 1,000 is approximately 0 when rounded to the nearest whole number.

To divide 5 by 1,000, we simply perform the division:

5 ÷ 1,000 = 0.005

Now, to round the result to the nearest whole number, we examine the first decimal place. Since it is less than 5, we round down to the nearest whole number.

Thus, the rounded result is 0.

Rounding is a process used to simplify numbers to a certain level of precision. When rounding to the nearest whole number, we look at the digit to the right of the decimal point (the first decimal place). If this digit is 5 or greater, we round up to the next whole number. If it is less than 5, we round down to the current whole number.

In this case, 0.005 is less than 0.5, so we round down to 0.

To learn more about division click on,

https://brainly.com/question/14907741

#SPJ2

Answer:

Step-by-step explanation:

sorryy

Total number of toys with Lalit = 10

Toys he gave to his sister = 1/3 of 10.

Toys left with him = ?

Toys given = 1/3 × 10

= 10/3

= 3.33

= 3 toys (approx.)

Toys left = 10 - 3

= 7 toys (approx.)

_____

RainbowSalt2222 ☔

Answer:

$0.49

Step-by-step explanation:

Answer:

X = -1 & and for some additional information Y = -5

Step-by-step explanation:

6 x (-1) = (-6)

5 x (-5) = (-25)

(-6) - (-25) = (-31)

_____________

5 x (-1) = (-5)

3 x (-5) = (-15)

(-5) + (-15) = 10

Answer:

  x = -1

Step-by-step explanation:

Rashid may have used elimination to solve the problem, but we can use any method we like to find the correct value of x. One method we like is graphing. The attached graph shows the solution is (x, y) = (-1, 5), so we know Rashid found ...

  x = -1

__

If we go down Rashid's path, we multiply the first equation by 3 and add that to the second equation multiplied by 5. (This choice of multipliers results in a positive coefficient for x.)

  3(6x -5y) +5(5x +3y) = 3(-31) +5(10)

  18x -15y +25x +15y = -93 +50 . . . . . . eliminate parentheses

  43x = -43 . . . . . . . . . . . . . . . . . simplify

  x = -1 . . . . . . . . . . . . . . . . . divide by 43