4x+ 6y =12 x = -4y + 8
9 math

Answer:

Ans: The number will be six (6)

Answer:

The perimeter is 28.13 cm

Step-by-step explanation:

We connect a line from A to C

we can use the cosine rule to find the length AC

let us call it x

AC^2 = AB^2 + BC^2 - 2(AB)(BC) cos B

we have this as;

x^2 = 6^2 + 8^2 - 2(6)(8) cos 95

x^2 = 36 + 64 + 8.37

x^2 = 108.37

x = √108.37

x = 10.4 cm

AC = 10.4 cm

now, let us look at triangle ADC Where we have AC as the hypotenuse as it is the side facing the right angle

We can use Pythagoras’ theorem to get the value of CD

We have it that the square of the hypotenuse AC is the sum of the squares of the two other sides

let DC be y

10.4^2 = 5^2 + y^2

y^2 = 108.37 - 25

y^2 = 83.37

y = √83.37

y = 9.13 cm

The perimeter of the shape is the sum of all its sides

so we have;

AB + BC + CD + AD

= 6 + 8 + 9.13 + 5

= 28.13 cm

Answer:

Value of 8x -5y + 7 is 4.

Step-by-step explanation:

Given that:

8x-5y = -3     Eqn 1

It is a true equation.

Now we have to find the value of the given expression

8x -5y + 7

Putting value of 8x-5y from Eqn 1 in the given expression

8x - 5y + 7

-3 + 7

4

Therefore,

8x - 5y + 7 = 4

Hence,

Value of 8x -5y + 7 is 4.

Answer:

it will me a negative (-)

Step-by-step explanation:

The amount that you decrease the price by can be expressed as a percent of the selling price, known as the markdown rate.

Answer:

No

Step-by-step explanation:

480 fruits/3 hours=160 fruits/hour average

550 fruits/5 hours=110 fruits/hour average

Answer:

x=1

Step-by-step explanation:

13x-12=7x-6

13x-7x=-6+12

6x=6

x=1

I hope this helps, have a great day! :) -wilzW

After solving the equation, the value obtained for x is equal to 1.

Equations are mathematical expressions that have two algebra on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.

As per the given equation in the question,

13x - 12 = 7x - 6

13x - 7x = -6 + 12

6x = 6

x = 6/6

x = 1

Therefore, the value obtained for x will be equal to 1.

To know more about an equation:

https://brainly.com/question/10413253

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Answer:

Between 25 and -18 is 0.

Between -18 and -12 (in the corner) is again, 0.

Between -12 and -18 (left side corner, bottom) is 5.

Between 0 and -12 (top left corner) is -18.

Between 0 and 5 (top of page) is 25

Between 5 and -12 (bottom right corner) is 0

Between -18 and 25 (middle) is 5

Between -18 and 0 (middle) is -12

Between -12 and 0 (middle-left) is 5

Between -12 and -18 (not corner, but above it) is 25.

Step-by-step explanation:

I don't really have a explanation, other than elimination.

Answer:

Step-by-step explanation: Don't have an explanation except elimination.

Answer:

3

Step-by-step explanation:

y=7-4

y=3

I think the answer is three..... buuuuuuuut

Answer:

z> 5 /2

Step-by-step explanation:

Answer:

Your answer is indeed Saturday.

Step-by-step explanation:

The day before, (Wednesday) the day before, (Tuesday) yesterday, (Monday).

And then after the day before my Birthday, (sunday and then Saturday.)

Answer:

Both

Step-by-step explanation:

Bc, 6/4 is equal to 1.5

Answer:

Both

Step-by-step explanation:

If you think about it, 6/4 is the same thing as 1.5, 6/4 is in the fraction form and 1.5 is in the decimal form. So, Deja and Sydney are both correct.

Hope this helps :D

Answer:

390 miles

Step-by-step explanation:

(45 x 4) + (35 x 6) = 390 miles

Answer:

29, 26, 21, 14, 5

Step-by-step explanation:

To find the first 5 terms, substitute n = 1, 2, 3, 4, 5 into the n th term formula.

30 - 1² = 30 - 1 = 29

30 - 2² = 30 - 4 = 26

30 - 3² = 30 - 9 = 21

30 - 4² = 30 - 16 = 14

30 - 5² = 30 - 25 = 5

The first 5 terms are 29, 26, 21, 14, 5

Equation of the ellipse = 3x² + 5y² = 32

The equation of an ellipse is given by,

[tex]\sf \dfrac{x^2}{a^2} +\dfrac{y^2}{b^2} =1[/tex]

Given that the ellipse passes through the point (-3, 1)

Hence,

[tex]\sf \dfrac{(-3)^2}{a^2} +\dfrac{1^2}{b^2} =1[/tex]

Cross multiplying we get,

Multiply by 4 on both sides,

Also by given the ellipse passes through the point (2, -2)

Substituting this,

[tex]\sf \dfrac{2^2}{a^2} +\dfrac{(-2)^2}{b^2} =1[/tex]

Cross multiply,

Subtracting equations 2 and 1,

Substituting in 2,

Substituting the values in the equation for ellipse,

[tex]\sf \dfrac{x^2}{32/3} +\dfrac{y^2}{32/5} =1[/tex]

[tex]\sf \dfrac{3x^2}{32} +\dfrac{5y^2}{32} =1[/tex]

Multiplying whole equation by 32 we get,

3x² + 5y² = 32

Answer:

Please check the explanation.

Step-by-step explanation:

We know that a pentagon is a polygon with 5 sides and 5 angles.

Given the polygon with 5 angles.

A pentagon is a polygon with 5 sides and 5 angles.

The angles of the given pentagon are:

∠P = (4x + 2)°

∠Q = 132°

∠R = (4x - 10)°

∠S = (5x - 11)°

∠T = 128°

We know that the sum of the measures of the interior angles of a pentagon is 540 degrees.

Therefore,

∠P + ∠Q + ∠R + ∠S + ∠T = 540°

(4x + 2)° + 132° + (4x - 10)° + (5x - 11)° + 128° = 540°

group similar elements

4x + 4x + 5x + 2 + 132 - 10 - 11 + 128 = 540

simplify

13x + 241 = 540

subtract 241 from both sides

13x + 241 - 241 = 540 - 241

13x = 299

divide both sides by 13

13x/13 = 299/13

x = 23

Thus, the value of x = 23

Therefore, the measure of angle ∠S is:

m∠S = (5x - 11)°

        = (5(23) - 11)°

        = (115 - 11)°

        = 104°

Thus,

m∠S = 104°

Answer:

Step-by-step explanation:

Add 6 to both sides.

3m−6+6=33+6

3m=39

Divide both sides by 3.

3m/ 3 = 39 /3

m=13

Answer:

Step-by-step explanation:

[tex]step - 1 : define[/tex]

[tex]3m-6=33[/tex]

[tex]step - 2 : \\ add \: 6 \: to \: both \: sides[/tex]

[tex]3x - 6 + 6 = 33 + 6[/tex]

[tex]3x = 39[/tex]

[tex]step - 3 : \\ divide \: both \: sides \: by \: 3[/tex]

[tex] \frac{3x}{3} = \frac{39}{3} [/tex]

[tex] \huge\therefore \: x = 13[/tex]

Answer:

25%

Step-by-step explanation:

Divide 89.99 or 90 (since you are rounding) by 120, and you get .7499 or 75%.  You have 25% ($30) as the discount because 90 is 75% of $120.

Answer:

1 day

Step-by-step explanation:

day if you're like mee because I will buy chips cards for games

Answer:

4

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

I just got it right on iready

Answer: x=55

Step-by-step explanation: 35+35=70. 180-70=110. 110/2=55.

Answer: 44%

Step-by-step explanation:

Area of the first hole = 30 × 30 = 900

Area of second hole = (30+6) × (30+6) = 36 × 36 = 1296

Percentage increase = (1296 - 900) / 900 × 100

= (396 / 900) × 100

= 44%

Answer:

Ask your teacher because i don't know how to do it or i would help sorry

Step-by-step explanation:

Answer:

Arthmetic, it is a 5 difference

Step-by-step explanation:

Brainliest pls

Answer:

15/100 x 10625

Saved: 1593.75 pounds

Because the answer to X is a negative number, and negative numbers are needed for negative answers

Answer: because it won’t make sense if it was 74y it has to have an equation or expression.

Step-by-step explanation: I’m not that smart and I have no friends on brainly but hope it helps and makes your day.

Answer:

y=mx+b

Step-by-step explanation:

Answer:

Answer: y=mx+b

Step-by-step explanation:

:) Hope this helps!!