help me pls!!

find x and y

y= -3x=-19
5x+8y=0

Answer:

[tex]expand \: by \: distributing \: the \: term \\ - (12x {}^{3} + 9x {}^{4 } - 24x {}^{2} ) \\ remove \: parentheses \\ - 12x {}^{3} + 9x {}^{4 } - 24x {}^{2} \\ [/tex]

Answer:

Selling Price 250

Profit =5%

We are given to find the cost price of articles .

First we find the profit

► Profit = 250/100 × 5

► Profit = 2.5×5

► Profit = 12.5

► Cost Price = 250-12.5

► Cost Price = 237.5

So, the cost price of the article is 237.5

Selling price of the article.

Profit percentage %.

To do:

We have to find the cost price.

Solution:

Let the cost price of the article be .

Profitpercent = SP-CP/CP × 100

5 = 250-x/x x 100

5x = (250-x) 100

x = (250-20) 20

x = 250 (20) - 20x

x + 20x = 5000

21x = 5000

x = 5000/21

x = 238

Therefore; cost price of the article is Rs 238

Hope it helps mga labs mwehehe

Answer:

x = -3.5 or x = 1.7

Step-by-step explanation:

Start by factoring the left side.

We need to find two numbers that have a product of -210 (6 * -35) and a sum of 11...

-10*21=-210

-10+21=11

We can rewrite 11x as -10x+21x...

[tex]6x^2-10x+21x-35=0[/tex]

Then, factor the first and second half of the left side individually:

[tex]2x(3x-5)+7(3x-5)=0[/tex]

Since 2x and 7 are both being multiplied by 3x-5, we can combine them to get:

[tex](3x-5)(2x+7)=0[/tex]

Divide the equation by 3x-5:

2x+7=0

Subtract 7 from both sides

2x=-7

Divide both sides by 2

x=-7/2=-3.5

Now, we also have to consider another answer, in which we divide the equation by 2x+7 instead of 3x-5:

3x-5=0

Add 5 to both sides

3x=5

Divide both sides by 3

x=5/3≈1.7

Answer:

A

Step-by-step explanation:

A: y + 2 = 3(x-6)

B: y + 2 = -3(x-4)

C: y + 1 = 6(x-4)

D: y + 1 = -6(x+4)

Point slope formula: y₂ ± y₁ = m( x₂ ± x₁ )

m = 3

y + 2 = 3(x-6)

Answer:

  ray

Step-by-step explanation:

A half-line is called a ray.

Answer:

answer

3m + 50mn

correct me if I'm wrong.

Answer:

I think it would be 3m + 50mn

Step-by-step explanation:

Sorry if I am wrong, hope it helps!

Answer:

[tex]x^{2}[/tex]+8x+7

Step-by-step explanation:

you wanted it simplified or ..?

Answer:

Decide if the evidence supports the claim well enough to convince most reader that its true.

Step-by-step explanation:

Answer:Decide if the evidence supports the claim well enough to convince most readers that it’s true.

Step-by-step explanation:

Answer:

$4 a week? darn that's a scam

Step-by-step explanation:

It should take her two and a half weeks to get $10.

Answer:

3

Step-by-step explanation:

Because she gets 4$ a week so her first week she gets 4$

second week she gets 8$

And finally her third week she would heave 12$

Have a good day :)

Answer:

a) 54.5

b) 55.4

Step-by-step explanation:

error intervals - 54.5 is the lowest number that can round to 55, and 55.4 is the highest because 55.5 would round to 56

Answer:

$ 4.20

Step-by-step explanation:

He spent $3.63 on apples

$1.80 on peaches

if you subtract both those numbers from $9.63 you get $4.20

So thats the amount he spent on tomatoes

Answer:

Luke cut his cake into 6 slices. Kira cut her cake into 9 slices, and Ali cut her cake into 12 slices.

Step-by-step explanation:

For Luke - 2/3 * 6 = 4

For Kira - 2/3 * 9 = 6

For Ali - 2/3 * 12 = 8

Hope this helps!

Answer:

Rational, Rational, Rational, Irrational, Irrational

Step-by-step explanation:

The first question:

This number is rational

Second:

This number is rational. It wouldn't be rational if the digits won't repeat.

Third:

This number is rational

Fourth:

This is irrational. The digits of pi do not repeat, making it irrational.

Fifth:

Irrational. The square root of a non-perfect square is irrational.

-Chetan K

Answer:

so

=120+32

=152

z=152 degree

Answer:

6x100 is 600.0

4x10 is 40.0

4x1 is 4.0

9x1/10 is 0.5

7x1/1000 is 0.07

2x1/1000 is 0.002

Step-by-step explanation:

Use the MR.DL rule.

MR.DL stands for Multiply right Divide left, it is commonly used in multiplying and dividing decimals.

Please mark Brainliest

644.972

the fractions go after the decimal point.

please mark brainliest

Answer:

0.6 servings

Step-by-step explanation:

division. divide 3/5.

Answer:

8- 3x

Step-by-step explanation:

1- Calculate

Answer:

(Biggest to smallest)

Sides: DE, FE, FD

Angles: <F, <D, <E

Step-by-step explanation:

DE = 14, FE = 10, FD = 8 (Biggest to smallest)

Each angle matches up diagonally with a side

Hope this helps!

Answer:

The answer is D

Step-by-step explanation:

The simplified form of the algebraic expression  [tex]\frac{x+2}{x^{2} +5x+6} / \frac{3x+1}{x^{2} -9}\\[/tex]  is  [tex]\frac{x-3}{3x + 1}[/tex].

Simplification of an algebraic expression can be defined as the process of writing an expression in the most efficient and compact form without affecting the value of the original expression.

[tex]= \frac{x+2}{x^{2} +5x+6} / \frac{3x+1}{x^{2} -9}\\ \\ = \frac{x+2}{x^{2} +5x+6} * \frac{x^{2} -9}{3x+1}[/tex]

Solving in parts,

[tex]=x^{2} +5x + 6\\\\= x^{2} + 2x + 3x + 6\\\\=x(x+2) + 3(x+2)\\\\=(x+2)(x+3)[/tex]

[tex]= x^{2} -9\\\\= x^{2} - 3^{2}\\ \\=(x - 3)(x + 3)[/tex]

[tex]= \frac{x+2}{x^{2} +5x+6} * \frac{x^{2} -9}{3x+1}\\\\= \frac{x+2}{(x+2)(x+3)} * \frac{(x+3)(x-3)}{3x+1}\\ \\=\frac{x-3}{3x + 1}[/tex]

Learn more about simplifying an algebraic expression here

https://brainly.com/question/953809

#SPJ2

Answer:

170

Step-by-step explanation:

don't know if its right

i calculate it...hope it help a little

The equation that describes the given situation and the number of packs required are; 25x = (17 * 10) and x = 7 packs

We are told that;

Each sticker comes in a pack of 25

Now, she wants to give each of the 17 guests at least 10 stickers.

Let the number of packs she will require be x. Thus, the expression to describe this situation is;

25x = (17 * 10)

x = (17 * 10)/25

x = 6.8 packs

Approximating to a whole number gives us 7 packs of stickers required.

Read more about Algebraic Equations at; https://brainly.com/question/4344214

[tex] \hookrightarrow \sf \dfrac{252}{2} \\ \\ [/tex]

[tex] \hookrightarrow \sf126[/tex]

Answer:

40% decrease.

Step-by-step explanation:

Hey there!

f(x) = 3(2)^x

f(x) = 3(2)^-1

y = 3(2)^-1

y = 3 * 2^-1

y = 3 * 1/2

y = 3/1 * 1/2

y = 3(1) / 1(2)

y = 3/2

y ≈ 1 1/2

Thus, your answer is: y = 3/2 or y = 1 1/2

[EITHER OF THOSE SHOULD WORK BECAUSE THEY ARE BOTH EQUIVALENT TO EACH OTHER]

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

f(-1) = 3/2

Step-by-step explanation:

Solve:

-Chetan K

Answer:

x = 2.0172

Step-by-step explanation:

2.2^x+2.2^-3=5

-> 2.2^x+0.093914 = 5

-> + -0.93914    + -0.93914

-> 2.2^x = 4.906086

-> x = log(4.906086/log(2.2)

-> x = 2.0172

Answer:

$4

Step-by-step explanation:

Let x be the cost of a game of bowling and y be the cost to rent the shoes before the game then...

4x+y=28

6x+y=40

We can solve this system using elimination. In this scenario, we can eliminate y by subtracting the two equations...

-2x=-12

Divide both sides by -2

x=6

Plug 6 back in for x to solve for y

4(6)+y=28

24+y=28

Subtract 24 from both sides

y=4

It costs $4 to rent the shoes before bowling

Radius of circular grass lawn(without path)=[tex]35 \: cm[/tex]

Radius of circular grass lawn (with path)=[tex]35 \: cm+7 \: cm=42 \: cm[/tex]

Area of circular path=[tex]\pi ( R + r)( R- r)[/tex]

[tex] = \displaystyle{ \frac{22}{7} (42 + 35)(42 - 35)}[/tex]

[tex] = \displaystyle{ \frac{22}{7} \times 77 \times 7}[/tex]

[tex] = \displaystyle{ \frac{22}{ \cancel7} \times \cancel{77} {}^{11} \times 7}[/tex]

[tex] = 22 \times 11 \times 7[/tex]

[tex] = 242 \times 7[/tex]

[tex] = 1649 {cm}^{2} [/tex]

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