Solve Using Substitution
-9x + 6y = 18
y = -6​

Answers

Answer 1

Answer:

the answer should be x = -6

Step-by-step explanation:

-9x + 6y = 18

-9x + 6(-6) = 18

-9x - 36 = 18

-9x - 36 + 36 = 18 + 36

-9x = 54

-9x ÷ -9 = 54 ÷ -9

x = -6


Related Questions

On a coordinate plane, points are at (negative 5, 5), (0, 5), (0, negative 1), and (negative 5, negative 1).

Daniel is drawing a plan for a new animal pen for his farm. The rectangle plotted in the coordinate plane represents the pen, measured in feet. How many feet of fencing does he need to surround the pen?

10 feet

11 feet

20 feet

22 feet

Answers

Answer:

22 feet

Step-by-step explanation:

Answer:The guy is correct. its 2021 eduinty

Have a great day!

Step-by-step explanation:


4. Emily ate dinner at Geisha. Her total was $17.50. A 8% sales tax was
added to her bill. After, Emily added a 20% tip on the total after tax. What
was Emily's final total?
*

Answers

Answer: $22.68

Step-by-step explanation:

17.50 times 0.08 = 1.40

17.50 + 1.40 = 18.90

Now the tip:

18.90 times .2 = 3.78

18.90 + 3.78 = 22.68

Help=pts 3and4!!!!!!!!

Answers

See picture. If it’s sideways, use the rotate button.

If MI = 15 m, SM = 20 m, and TM = 9 m, what is the value of RM?

Answers

Answer:

RM=12m

Step-by-step explanation:

You can set up a proportion of 9/15 on one side and RM/20 on the other. you would then cross multiply and solve for RM

chris worked 3 1/2 hours at his uncles farm. He was paid 8$ for every 1/4 hour he worked. How much money did chris make

Answers

Answer:

$112

Step-by-step explanation:

So first figure out how much he makes an hour

8*4 is 32.

32*3 1/2 is $112

The amount that Chris will make will then be $112.

The first thing to do is to divide 3 1/2 by 1/4. This will be:

= 3 1/2 / 1/4

= 7/2 × 4/1

= 14

Now we'll then multiply 14 by $8. This will be:

= $8 × 14

= $112

The amount made will be $112.

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the sum of a number and 6 is the same as the number times 11.

Answers

Answer:

x = 3/5

Step-by-step explanation:

One angle of a triangle measures 75. The other two angles are in a ratio of 5:16. What are the measures of those two angles?

Answers

Answer:

25 and 80

Step-by-step explanation:

180 - 75 = 105

105 / (5+16) = 5

multiply each side of the ratio 5:16 by 5

5x5 : 16x5 = 25:80

You have $12 to spend on pears and oranges.graph the equation 1.2x+0.8y=12,where x is the number of pounds of pears and y is the number of pounds of oranges.
Please I could use the help from anyone just need a graph and answer.

Answers

Answer:

Hope this helps

Step-by-step explanation:

X= 10 - 0.6y

Y= 15 - 1.5x

when solving a quadratic equation by completing a square which of the following is NOT a step you would take?

A. Take half of b, then square it
B. Subtract x squared from both sides
C. Take the square root of both sides
S. Use the following symbol when taking root. +
-

I dont know if you understand the symbol i tried ​

Answers

Answer: D

Step-by-step explanation:

answer to the question dfidsjfdiujfdhfds

Answers

Answer:

Um, ya I don't know

Step-by-step explanation:

Which of the following sets of numbers have the same mean, median, and mode?
0 3,5,8, 4.5
O 5, 1, 2, 2.5
10.6.4, 2.8
2.68.6.3

Answers

Step-by-step explanation:

calculate the each one then compare

hint :

mean : add all the numbers and divide by how many numbers there are .

median : the middle number . for example : 12345 . 3 is the middle number .

mode : the number that appears more often than the other numbers.

Leo makes a cake by mixing flour, eggs and sugar in the ratio 5 : 3 : 2. If he uses 120 g of sugar, what weight of eggs will he need?

Answers

Answer:

180g of eggs

Step-by-step explanation:

divide 120 by 2 = 60

then times 60 by 3 = 180g

PLEASE I BEG OF YOU TO HELP ME PLEASE

Answers

Answer:

its B

Step-by-step explanation:

i did it earlier today

Answer:

A

Step-by-step explanation:

-1x-12≤-4

-x≤8

x≥-8

I would appreciate if you could help and explain on how you do it. :)

<ABC and <DEF are complementary angles.

What is the measure of x?


Answers

Answer:

x=35

Step-by-step explanation:

which products result in difference of squares
(x-y)(y-x)

(6-y)(6-y)

(3+xz)(-3+xz)

(y^2-xy)(y^2+xy)

Answers

Answer:

[tex](3+xz)(-3+xz)[/tex]

[tex](y^2-xy)(y^2+xy)[/tex]

Step-by-step explanation:

The Difference of Squares

Any difference of two squared monomial results in a factored form like shown below:

[tex]a^2-b^2=(a-b)(a+b)[/tex]

Similarly:

[tex](a-b)(a+b)=a^2-b^2[/tex]

For a product of binomials to be a difference of squares, they must be in the described form.

------------------------

(x-y)(y-x) can be rewritten as:

-(x-y)(x-y)

Since both binomials are identicals, the product will not result in a difference of squares.

-----------------------

(6-y)(6-Y)

Since both binomials are identicals, the product will not result in a difference of squares.

-----------------------

(3+xz)(-3+xz) can be rewritten as:

(xz+3)(xz-3). This product is a sum multiplied by a difference of the very same terms, thus the result is a difference of squares:

[tex](3+xz)(-3+xz)=(xz)^2-9[/tex]

-----------------------

[tex](y^2-xy)(y^2+xy)[/tex]. This product is a sum multiplied by a difference of the very same terms, thus the result is a difference of squares:

[tex](y^2-xy)(y^2+xy)=y^4-(xy)^2[/tex]

-----------------------

Summarizing:

(3+xz)(-3+xz)

[tex](y^2-xy)(y^2+xy)[/tex]

which similarity statement is true for the triangles shown?

- ABC = DEF
- ABC = FED

Answers

Answer:

I’m pretty sure it’s Triangle ABC is congruent to Triangle DEF.

Step-by-step explanation:

If you rotate Triangle DEF to where the 90 degree angle is on the bottom right, you can the compare the two triangles. You can divide 300/25, 240/20, and 180/15. They all result in 12 meaning they are congruent and similar in that way. (I’m only 90% this is right btw)

An amount of $5,000 is invested. The interest rate is 2%.

Answers

Answer:

A = 5000(1 + 0.06/2)(2)(4) = 5000(1.03)(8) = $6333.85.

Step-by-step explanation:

Answer:

$2191.12

Step-by-step explanation:

Given the following functions, find the indicated values.
f(x) = 9 - 3x
(a) f(-4) (b) f(0) (c) f(2)

Answers

Answer:

hope it helped have a good day mate

whats the anwser for - 4x +35> 2

Answers

Answer:

x<33/4

Step-by-step explanation:

-4x+35>2

-4x>2-35

-4x>-33

4x>33

x>33/4

x<33/4

A man is filling an empty 5-gallon bucket with water at a constant rate. there are 2.4 gallons of water in the bucket after filling the bucket for 12 minutes. At what rate, in gallons per minute, is the man filling the bucket ?

Answers

Answer: The answer is 0.2

Step-by-step explanation: 2.4g / 12 minutes

0.2g/minutes

Ashton just launched a new business page on social media. After one month, she has 35 followers.
She decides to take a course that promises to triple her number of followers each month for 6
months. After 7 months, how many followers will Ashton have if this is true?

Answers

Answer:

122.5

Step-by-step explanation:

If it triples her followers per 6 months then it gives her half of her followers in one month. So 35 times 3.5 which is 122.5

After [tex]7[/tex] months, Ashton will have [tex]25,515[/tex] followers.

What is modelling ?

Modelling is the process of creating a mathematical representation of a real-world scenario to make a prediction or provide insight.

We have,

Number of followers [tex]=35[/tex]

So, Every month increase is triple i.e. [tex]3[/tex] times for next [tex]6[/tex] months.

So,

According to the question,

Every month increase [tex]=\ 3\ *\ Current\ Follower[/tex]

So,

Followers after [tex]7[/tex] months [tex]= 35*(3)^6[/tex]

Because followers are increasing at the rate of three times per month,

So,

Followers after [tex]7[/tex] months [tex]= 35*(3)^6=25,515[/tex]

Hence, we can say that After [tex]7[/tex] months, Ashton will have [tex]25,515[/tex] followers.

To know more about Modelling click here

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#SPJ3

Ashley opened a lemonade stand on her street. It costs her $12.50 to buy the supplies each day, and she sells lemonade for $2.50 a cup. If she wants to make at least $200.00 in profits (sales - expenses) each day, what is the minimum number of cups of lemonade Ashley needs to sell? Input your answer as a whole number.

Answers

Answer:

x= 75

Step-by-step explanation:

Subtract sales - expenses

200 - 12.5 = 187.5

2.5x = 187.5

Divide by 2.5 on both sides

187.5/2.5

x = 75

the distance between the two points rounding to the nearest tenth
(-8,-6) and (-3,-4)

Answers

Answer:

5.4

Step-by-step explanation:

To find the distance between two points, [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex], plug them into the following equation:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\d=\sqrt{(-3-(-8))^2+(-4-(-6))^2}[/tex]

Two negatives make a positive

[tex]d=\sqrt{(-3+8)^2+(-4+6)^2}\\d=\sqrt{(5)^2+(2)^2}\\d=\sqrt{25+4}\\d=\sqrt{29}\\d=5.4[/tex]

Therefore, the distance between the two points rounded to the nearest tenth is 5.4.

I hope this helps!

Which equation represents this statement?

"Five more than twice a number, x
, is equal to one less than three times that same number, x
."

A: 2 x+ 5 = 3 x- 1
B: 5 x= 3 x- 1
C:2 x+ 5 = 3( x- 1)
D: 5 + 2 x= 1 - 3 x

Answers

Answer:

A

Step-by-step explanation:

5 + 2x = 3x - 1

Nothing, nothing at all.

Answers

Yes onhhfghbghhgghy. Bybbbrb. Btthbt

Answer:

what?

Step-by-step explanation:

Find the measure of the angle indicated in bold.

Answers

Answer:

125°

Step-by-step explanation:

16x - 3 = 14x + 13 (vertical angles)

16x - 14x = 13 + 3

2x = 16

x = 16/2

x = 8

(16x - 3)° = (16*8 - 3)° = (128 - 3)° = 125°

25.37 x 3.8
pls help

Answers

Answer:

96.406 :)

Step-by-step explanation:

Answer:

calculator

Step-by-step explanation:

i

Write the equation of the line passing through the points (-3,7) and (-6,9)
in slope-intercept form. *
Your answer

Answers

Answer:

y = -2/3x + 5

Please help.........

Answers

Answer: what the heck do you have to answer

Step-by-step explanation:

Please help! I will mark brainliest if you are correct

Answers

The answer for √x+17+3=x is choice B x=8
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