can someone please help me !!!!!​

Answer:

x = 6

y = -1

Step-by-step explanation:

x = - 6y ----------------------(I)

4x + 10y = 14 ------------------(II)

Substitute x = -6y in equation (II)

4*(-6y) + 10y = 14

-24y + 10y = 14  {Combine like terms}

           -14y = 14   {Divide both sides by 1-4}

               y = 14/-14

y = -1

Now, substitute y = -1 in equation  (I)

x = - 6*(-1)

x = 6

Answer:

12

Step-by-step explanation:

Answer: 12

Step-by-step explanation:

3x^2+6x+8=6

3x^2+6x+8-6=0

3x^2+6x+2=0

here  a=3 ,b=6,c=2

Discriment=b^2-4ac

  =(6)^2-4(3)(2)

=36-24

=12

Answer:

138 laps in 23 minutes

Step-by-step explanation:

30/5

x/23

5x=690

690/5=138

Answer:

72

Step-by-step explanation:

Answer:

72

Step-by-step explanation:

25-7=18

18÷25=0.72×100=72

Step-by-step explanation:

the slope is 2 (the cost for each topping)

the y-int is 8,, it represents the initial $8 for the pizza

and i dnt understand wht the last sentence is asking for

Answer:

The answer is 2.5

Step-by-step explanation:

Your welcome! I sometimes get stuck on problems like you too for hours until I get it.

Answer:

Scale factor: 2.5

Step-by-step explanation:

Scale factor is the ratio between corresponding measurements. And a pre image is basically an (original image) while an image is the translated version of the original.

I'm not sure what the best way to explain my answer is, but you can either multiply or divide to find the answer.

4 x 2.5 = 10

8 x 2.5 = 20

10 x 2.5 = 25

5 x 2.5 = 12.5

10/4 = 2.5

20/8 = 2.5

25/10 = 2.5

12.5/5 = 2.5

Answer:

respuesta b

¿cuantas señales diferentes son posibles si almenos una bandera es utilizada?

4P4+4P3+4P2+4P1=64

Area of a circle = pi x r^2

Area = 3.14 x 7^2

Area = 3.14 x 49

Area = 153.86 square units.

Answer:

y = - [tex]\frac{4}{5}[/tex] x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, 12) and (x₂, y₂ ) = (10, 4)

m = [tex]\frac{4-12}{10-0}[/tex] = [tex]\frac{-8}{10}[/tex] = - [tex]\frac{4}{5}[/tex] ← slope of line L

Parallel lines have equal slopes , then

y = - [tex]\frac{4}{5}[/tex] x + c ← is the partial equation

To find c substitute (5, - 11) into the partial equation

- 11 = - 4 + c ⇒ c = - 11 + 4 = - 7

y = - [tex]\frac{4}{5}[/tex] x - 7 ← equation of parallel line

The equation of the straight line which is parallel to L and passes through the point (5 , -11) will be;

⇒ y = - 4/5x - 7

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

The straight line L passes through the points (0 , 12) and (10 , 4).

And, The equation of the straight line which is parallel to L and passes through the point (5 , -11).

Now,

Since, The straight line L passes through the points (0 , 12) and (10 , 4).

So, Equation of line L is,

⇒ y - y₁ = (y₂ - y₁) / (x₂ - x₁) (x - x₁)

⇒ y - 12 = (4 - 12) / (10 - 0)  (x - 0)

⇒ y - 12 = - 8 / 10x

⇒ 10 (y - 12) = - 8x

⇒ 10y - 120 = - 8x

⇒ 10y = - 8x + 120

⇒ y = - 8/10x + 12

⇒ y = - 4/5x + 12

And, The equation of the straight line which is parallel to L and passes through the point (5 , -11).

So, We need to find the slope of the line.

Since, The slope of the parallel line is same.

Hence, Slope of the line is,

y = -4/5x + 12

m = dy/dx = - 4/5

m = - 4/5

Thus, The equation of line with slope 1- 4/5 is,

⇒ y - (-11) = - 4/5 (x - 5)

⇒ y + 11 = - 4/5 (x - 5)

⇒ 5 (y + 11) = - 4x + 20

⇒ 5y + 55 = - 4x + 20

⇒ 5y = - 4x + 20 - 55

⇒ 5y = - 4x - 35

⇒ y = - 4/5x - 7

Thus, The equation of the straight line which is parallel to L and passes through the point (5 , -11) will be;

⇒ y = - 4/5x - 7

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Answer:

24girls

Step-by-step explanation:

3+2 =5

5=60children

2=?

24 girls

Answer:

14.37 is your answer for his meal, hope this helped. <3

Step-by-step explanation:

You have 13.77 then you add 7% then round it  up.

Answer:

g(h(x)) = 9x² + 12x - 3

h(g(x)) = -3x² - 19

Step-by-step explanation:

g(h(x)) = (3x² + 2)² - 7

= 9x² + 6x + 6x + 4 - 7

= 9x² + 12x - 3

h(g(x)) = 3(x² - 7) + 2

= 3x² - 21 + 2

= 3x² - 19

Answer:

(X-7)^2+(y +3)^2 = 7

Answer:

12.56

Step-by-step explanation:

4 ×3.14 to get 12.56

Answer:

tan ? = oop/adj

tan ? = 14/26

tan ? = 0.538

arctan tan? = arctan 0.538

? = 28°

Answer:a^2

Brailniest if this helped ;)

Also the ^ means an exponent just so you know

Answer:

In a deck of cards, there are 6 faced cards. So, the probability of drawing a faced card is 6 out of 52 cards. Thus, the probability of drawing a face card from a deck of cards is 6/52 = 3/26.

Step-by-step explanation:

Answer:

4/13

Step-by-step explanation:

There are 4 10 cards.

There are 12 face cards.

Probability of both:

4/52 + 12/52 = 16/52 = 4/13

Answer:

The answer is 50%.

Step-by-step explanation:

I did the question on IXL, and got it right.

Answer:

(5y - 1)(5y + 1)

Step-by-step explanation:

Assuming you require the expression to be factorised.

25y² - 1 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

25y² - 1

= (5y)² - 1²

= (5y - 1)(5y + 1)

Answer:

Below.

Step-by-step explanation:

25y²-1

This is the difference of 2 squares and it factors to (5y - 1)(5y + 1).

Answer:

4 2/3 is the answer

Step-by-step explanation:

4 2/3 is the answer

Answer:

[tex]4\frac{2}{3}[/tex]

Step-by-step explanation:

Answer:1 hour 44 minutes

Step-by-step explanation:

The movie would be 2 hours 24 minutes long.

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

Given that;

Dwayne watched a movie that began at 4:38 p.m. The movie finished at 6:22 p.m.

Now, The length of movie watched by Dwayne is,

⇒ 6 : 22 - 4 : 38

⇒ 1 : 84

⇒ 2 : 24

Hence, The movie would be 2 hours 24 minutes long.

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Answer:

jn8huuojgui

Step-by-s

Answer:

The answer it probably is C.

Step-by-step explanation:

Just add 16+16+16= 48. Hope this helps

Answer:

The answer is C... 16 units.

Step-by-step explanation:

I had this question on my test and got it correct.

Step-by-step explanation:

change the directions i think

you have to make the -1 -> 0

you have to multiply by -1

and if you multiply the direction will change

Answer:

Step-by-step explanation:

1.75x+1.25y=2           Multiply this equation by 4

7x + 5y = 8

7x+5y=9

As you can see, the xs and ys have the same coefficient. These lines are parallel. There are NO solutions. Just to show you that, here is a graph.

Answer:

45min

Step-by-step explanation:

just mutiply

Answer:

83min

Step-by-step explanation:

can i have it im trying to get a new role

Answer:

The cost is $75

Step-by-step explanation:

Given

[tex]y = 25x[/tex]

Required

Cost of 3 cubic yards -- Missing from the question

The required means that: [tex]x = 3[/tex]

Plug in [tex]x = 3\\[/tex] to [tex]y = 25x[/tex]

[tex]y = 25 * 3[/tex]

[tex]y = 75[/tex]

The cost is $75

Answer:

always

Step-by-step explanation:

so if it isn't it will be an acute or an obtuse