x+10,-8x -9y=-1Solve using substitution

Answers

Answer 1

Answer:

x +10 =0 (1)

-8x -9y=1 (2)

x=-10 => (2) 80-9y=1 =>y=9

=> x=-10, y=9

Step-by-step explanation:


Related Questions

Plz help with this I would mean a lot...Thanks!

Answers

Answer:

the number is one

Step-by-step explanation:

7-1= 6

6-3=2

hope this help and could u give me brainliest, thanks!

Introduction (Kinda)

So you want to write the equation and find the number.

Writing the Equation

Well, the question says "A number s is subtracted from seven. When the result is divided by three, the quotient is two."

If a number s is being subtracted from seven.

7-s

When the result of 7-s is divided by three, the quotient is two. Since your effecting the result of 7-s, you have to put those in parentheses.

(7-s)

Your dividing 7-s by 3.

(7-s) / 3

When you do that, you get 2.

(7-s) / 3 = 2

This is the equation.

Finding the Number

Now you need to solve the equation.

(7-s) / 3 = 2

You need to isolate the s. "Remove" the numbers in opposite PEMDAS order...

Addition and Subtraction

Multiplication and Division

Exponents

Parentheses

7-s is in parentheses.

Divided by 3 is division. So you do that first.

You can multiply by 3 to cancel that out.

(7-s) / 3 × 3 = (7-s)

2 × 3 = 6

7-s = 6

Now that 7-s is on its own side, you can remove the parentheses.

So now to cancel the 7, you subtract 7 from each side (of the equation).

7-s-7 = -s

6-7 = -1

-s = -1

Now to cancel the negative signs, multiply each side by -1.

-s × -1 = s

-1 × -1 = 1

s = 1

Final Answer

The equation is...

(7-s) / 3 = 2

The number is...

1

If u answer this, ill give you 15​

Answers

Answer:

7/10

Step-by-step explanation:

Answer:

70%

Step-by-step explanation:

Hope this helps have a great day.

Please help me ill give u Brainlyest

Answers

Answer: 25 is the absolute value

Positive 25 because it has | | that means it becomes positive

f(x) = x2 + 2x-5
g(x) = -3x2 - 4x + 1
What is f(x) - g(x)?
Answer choices: A. 2x² – 2x - 4
B. -2x² + 6x-6
c. 4x²
- 2x - 4
D. 4x²+6x-6

Answers

Answer:

Step-by-step explanation: the answer is d cause when you are in this question for a long time just give up or guess your welcome .

Help explain how to do this

Answers

Answer:

its c and you're welcome

Step-by-step explanation:

A. y+x=-3
B. y=3x+1
C. y-3x=1
D. y=3x+1

Answers

Answer:

Step-by-step explanation:

This is good :)

45 is 60% of what?
I need this ASAP pls and thank u

Answers

Answer:

27

What is 60 percent (calculated percentage %) of number 45? Answer: 27

Step-by-step explanation:

Answer:

It should be 75%

Step-by-step explanation:

Please give me brainliest

Whoever can tell mee what 77x45 will get brainly tell me howw u got it

Answers

Answer:

3465

Step-by-step explanation: I got 3465 by multiplying 77 times 45.  

Rob bought a hat and 3 shirts for $35 . Dan bought 2 hats and a shirt for $20 Which system of equations can be used to find s , the cost of one shirt, and h, the cost of one hat?

Answers

Answer:

1x+3y=35, 2x+y=20

x=5, y=10

Step-by-step explanation:

Let x equal the number of hats and y equal number of shirts.

Solve by substitution, elimination, or graphing.

Personally, I just solved by substitution.

Solve for x (or y) in the first equation. Let's do x.

1x+3y=35 goes to 1x=35-3y or just x=35-3y.

Since we have x, plug it in the other equation. 2(35-3y)+y=20. This equals out to y=10, i assume you understand the algebra.

Plug 10 into either equation for y.

1x+3(10)=35 or x+30=35. subtract 30 on each side. X=5.

which two
type of quardialtera has no parallel side ​

Answers

Answer:

Kite and Arrowhead

Step-by-step explanation:

It’s asking for “No pairs of parallel sides”

meaning no Parallel sides. It can’t be Trapezium because it has one pair of parallel sides. {The question is asking for shapes with no parallel sides}

Thank you

Evaluate c−d if c=11 and d=−3 .

Answers

Answer:

14

Step-by-step explanation: 11 - -3=14

A company has two manufacturing plants with daily production levels of 6x + 13 items and 3x - 7
items, respectively. The first plant produces how many more items daily than the second plant?

Answers

Answer:

The first plant produces 3x+20 more items daily than the second plant.

Step-by-step explanation:

Given that:

Production level of first plant = 6x+13

Production level of second plant = 3x - 7

We will find the difference of both plants manufacture levels.

Difference = First plant - Second Plant

Difference = (6x+13)-(3x-7)

Difference = 6x+13-3x+7

Difference = 3x+20

Hence,

The first plant produces 3x+20 more items daily than the second plant.

What fraction is equal to 75% of [tex]\frac{1}{2}[/tex]

Answers

3/8 is 75% of 1/2 I hope this helps!

Answer:

3/8

Step-by-step explanation:

A line crosses the coordinates (-3,5) and (4,-2). What is the slope of the line?

Answers

Answer:

Slope = -1

Step-by-step explanation:

[tex]\frac{-2-5}{4-(-3)}=\frac{-7}{7} =-1[/tex]

What is the volume of this cone?

Answers

Answer:

The volume of the cone is approximately 453.0 cm³

Step-by-step explanation:

The volume of a cone is one third that of a cylinder with the same height and radius.  That gives us  1/3 πr²h, where r is radius and h is height.

However, we are not given the height of the cone, but the side length.  We can work out the height using the Pythagorean theorem, as we have a right triangle with the height, base radius, and length.  You may recall that the Pythagorean theorem states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of it's other two sides:

[tex]a^2 = b^2 + c^2[/tex]

So we can find the height of the cone with that:

[tex]10.8^2 = 7.4^2 + h^2\\h^2 = 10.8^2 - 7.4^2\\h^2 = 116.64 - 54.76\\h^2 = 61.88\\h = \sqrt{61.88}\\h \approx 7.9[/tex]

Now that we have the cone's height, we can solve for its volume:

[tex]v = \frac{1}{3} \pi r^2 h\\v = \frac{1}{3} \pi \times 7.4^2 \times 7.9\\v = \frac{1}{3} \pi \times 54.76 \times 7.9\\v = \frac{1}{3} \pi \times 432.6\\v = \pi \times 144.2\\v \approx 453.0 cm^3[/tex]

Answer:

c = 490/3

Step-by-step explanation:

Do you know who Billie Eilish is, do you like her, do you listen to her music?

Answers

Answer:

yes yes yes

Step-by-step explanation:

Answer:

no, i do not know who billie eilish is

Step-by-step explanation:

Ms. Annand is getting drinks ready for a party. She has one gallon of fruit punch, two pints of apple juice, and a quart of grape soda. How much is she bringing all together for drinks to the party, measured in cups?

Answers

Answer:

4+4+16=24

Step-by-step explanation:

16 cups in a gallon, 4 cups in two pints, and 4 cups in a quart. Hope this helps!

What is the equation of the line that passes through the point (5, -2) and has a slope of 6/5?

Answers

Answer:

And line passes through the point (-6,5). we get y=mx+b => 5 = -4(-6)+b => b = 5-24 => b=-19.

Step-by-step explanation:

The equation of the line that passes through the given point is y=6/5 x + 2.

Given that, the line that passes through the point (5, -2) and has a slope of 6/5.

What is the slope intercept form?

The slope intercept form of a straight line is one of the most common forms used to represent the equation of a line. The slope intercept formula can be used to find the equation of a line when given the slope of the straight line and the y-intercept.

The standard form of the slope intercept form is y=mx+c.

Put m=6/5 and (5, -2) in y=mx+c, that is

-2 = 6/5 × (-2) + c

⇒ -2 = -12/5 + c

⇒ -10 = -12 + c

⇒ c = 2

Put m=6/5 and c=2 in y=mx+c, we get

y=6/5 x + 2

Therefore, the equation of the line that passes through the given point is y=6/5 x + 2.

To learn more about the slope intercept form visit:

brainly.com/question/9682526.

#SPJ2

I WILL AWARD BRAINLIEST FOR CORRECT ANSWER :)

Answers

Answer:

The first one is correct

The second one is 20years

The third one is £8820

Step-by-step explanation:

pls pls pls pls pls help​

Answers

Answer:

[tex]y=\frac{1}{2}[/tex]

Step-by-step explanation:

[tex]4(y+1)= \frac{3}{1-y}[/tex]

[tex]4y+4= \frac{3}{1-y}[/tex]

[tex](4y+4)(1-y)= 3[/tex]

[tex]4y(1-y)+4(1-y)=3[/tex]

[tex]4y-4y^{2} +4-4y=3[/tex]

[tex]-4y^{2}=3-4[/tex]

[tex]4y^{2}=1[/tex]

[tex]y^{2} = \frac{1}{4}[/tex]

[tex]y=\sqrt{\frac{1}{4} }[/tex]

[tex]y=\frac{1}{2}[/tex]

Which statement is true about the graph of s > 4.5?
The graph has an open circle and the arrow points to the left.
The graph has a closed circle and the arrow points to the left.
The graph has an open circle and the arrow points to the right.
The graph has a closed circle and the arrow points to the right

Answers

Answer: D

Step-by-step explanation:

The graph has a closed circle and the arrow points to the right

Answer:It is D

Step-by-step explanation:

Right on edge 2021

Find the value of x. 2x - 3 + 5​

Answers

Answer: -1

Explanation: -3 + 5 = 2

2x + 2 = 0

x = -1

On a chemistry quiz, there are 5 multiple choice questions with 4 choices each. What is the probability that you get a 100% if you strictly guess.

Answers

Answer:

0.097%

Step-by-step explanation:

Since this is a series of events probability question, in order to calculate the probability you need to first find the probability of getting each individual answer right and then multiplying those probabilities together. This will give you the probability of getting 100% on the entire test. Since the questions are multiple-choice with 4 choices and only 1 correct choice then the probability of getting one right is 1/4 or 25%. Now that we have that probability we simply need to multiply it 5 times for each individual question.

1/4 * 1/4 * 1/4 * 1/4 * 1/4 = 1/1024 or 0.0009765 or 0.097%

What expression is equivalent to x2 - 49

Answers

Answer:

x^2 - 49= (x+7) (x -7)

Step-by-step explanation:

SOMEONE HELP PLEASE!

Answers

Answer:

x=48 and y is 132 my guy u welcome

Answer:

48 + y = 180

y= 132

5x - 17 = 132

x=29.8

The area of this rectangle is 5x? What does the coefficient 5 mean in terms
of the problem?
width x
length 5x
A. The length is 5 times the width.
B. The total area of the square is 5.
C. The length is 5.
Ma
D. The width is 5 times the length.

Answers

The answer is A as the width is x and the length is 5x

Answer:

A. The length is 5 times the width

Step-by-step explanation:

When a number is next to a variable, like 5x, it means you multiply the number and letter. So "5x" is really saying 5 · x

Since width is equal to x, the length is 5 times the width.

FOR MATH ITS DUE TODAY

Answers

Distributive Property is factors a common term by the items that are inside parenthesis.

3(2x + 5)

3 = Factor

3(2x + 5)

2x and 5 = terms

3(2x + 5)

2 = coefficient

The coefficient is the number before the variable.

Ace

my question: 2 ¼ ÷ 3/6 =

Answers

Answer: 9/2, 4.5

Step-by-step explanation:

HALPPPPPPPPPPPPPPPPPPPPPPPPPP please ;w;

Answers

a30 = 12 - 5 (30-1)

a30 = 12 - 5 • 29

a30 = 12 - 145

a30 = -133


need geometry help please

Answers

Answer:

I think C

Step-by-step explanation:

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