Please help!!

2y = -1 + 9
3х — бу :
-15
M

Please Help!! 2y = -1 + 93 :-15M

Answers

Answer 1
• Rearrange first equation
x + 2y = 9

• Multiply the first equation by 3
3(x + 2y = 9)

• Rewrite equation 1
3x + 6y = 27

• Write both equations
3x + 6y = 27
3x - 6y = -15

• Subtract equation 1 from equation 2
3x + 6y = 27
-
3x - 6y = -15

• Write the reaming values
12y = 42

• Divide both side by 12 to solve for y
12y = 42 ➗ 12

• Write value of y
y = 3.5

• Substitute the value of y into one of the original equations
2(3.5) = -x + 9

• Use algebra and sole for x
7 = -x + 9
x = 9 - 7
x = 2

• Write final point
(3.5, 2)

Related Questions

Nathan usually drinks 35 ounces of water per day. He read that he should drink 68 ounces of water per day. If he starts drinking 68 ounces, what is the percent increase? Round to the nearest percent. Please help me

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Answer:

It’s 61.40 percent so rounding to the nearest percent would be 61% he needs to increase

Look at the picture and answer but I also need the value for each image

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Answer:

15...your welcome my dude

Please me I'm begging you

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Step-by-step explanation:

[tex]y - [ - x - (y + 15)] \\ = ( - 9) - [ - (18)- (( - 9) + 15)] \\ = ( - 9) - [ - (18)- ( 6)] \\ = ( - 9) - [ - 24] \\ = - 9 + 24 = \boxed{15} \\ \\ - 6(x - 2) - 5(x + 7) \\ = - 6x + 12 - 5x - 35 \\\boxed{ = - 11x - 23 }\\ \\ \frac{3}{4}( 4x + \frac{4}{3} ) = 4x \\ 3x + 1 = 4x \\ 4x - 3x = 1 \\ \boxed{ x = 1}[/tex]

solve pls brainliest

Answers

The answer is 10 :)))

Prove that for any natural n the value of the expression (4n+5)^2–9 is divisible by 4.

thank you !!!
please show work, not just the answer

Answers

Answer:

4 n (2) + 10 n +4

Step-by-step explanation:

Step-by-step explanation:

Simplify the expression by opening parenthesis:

(4n + 5)² - 9 =(4n)² + 2*5*(4n) + 25 - 9 =4(4n²) + 4(10n) + 4(4) =4(4n² + 10n + 4)

As we see the expression has 4 as one of factors so is divisible by 4.

A rectangle is 19 feet long and 3 feet wide. Find its area,
67 square feet
22 square feet
37 square feet
60 square feet

Answers

Answer:

19 times 3 equal  57

Step-by-step explanation:

57 square feet

Please help ive been stuck in this question

Answers

Answer:

The choice A.

Step-by-step explanation:

sin= Opposite/ hypotenuse

[tex] \sin(30) = \frac{ \sqrt{15} }{x} \\ \\ x = 2 \sqrt{15} [/tex]

tan = opposite/adjacent

[tex] \tan(30) = \frac{ \sqrt{15} }{y} \\ \\ y = 3 \sqrt{5} [/tex]

I hope I helped you^_^

What is this number written in word form? 2,080,000,000 no links
A. Two hundred eighty million
B. Two billion, eighty million
C. Two thousand eight hundred million
D. Two million, eighty thousand

Answers

B!!!!!!!!!!!!!!!!!!!!

Answer: B. Two billion, eighty million :)

1/5+1/2+1/4 reduce to lowest terms as indicated

Answers

Answer:

Step-by-step explanation:

LCM  of 5 , 2 and 4 = 20

[tex]\dfrac{1}{5}+\dfrac{1}{2}+\dfrac{1}{4}=\dfrac{1*4}{5*4}+\dfrac{1*10}{2*10}+\dfrac{1*5}{4*5}\\\\=\dfrac{4}{20}+\dfrac{10}{20}+\dfrac{5}{20}\\\\=\dfrac{4+10+5}{20}\\\\=\dfrac{19}{20}[/tex]

USE ME TO GET POINTS!!!

What’s 2 + 2?

Will also mark Brainlyest.

Answers

2+2=4 Steps: two apple plus two apples together makes 4 apples

13. Maddie purchased a sofa and a chair for her new apartment. The sofa cost $40 more
than twice the chair. She paid a total of $1252. What did she pay for each one?

Answers

The sofa cost $848 while the chair cost $404

Let x represent the cost of the sofa and y represent the cost of the chair.

The sofa cost $40 more  than twice the chair, hence:

x = 2y + 40

x - 2y = 40        (1)

She paid a total of $1252, hence:

x + y = 1252     (2)

Solving equation 1 and 2 simultaneously gives:

x = 848, y = 404

Therefore the sofa cost $848 while the chair cost $404

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what is the percentage of 3.5​

Answers

Answer:

350%

Step-by-step explanation:

First, there is a whole number in the ones place, so that number will be in the hundreds place of your percent. Then to find the percent of 0.5 you put the decimal part over 10:

5/10 = 1/2 = 50%

A stockbroker dealt with 30 customers on a certain day. Of these, 12 bought and sold stocks and 17 sold stocks (but did not buy). How many of the customers bought stocks (but did not sell)?

Answers

Answer:

25

Step-by-step explanation:

30=17+x-12

PLEASE HELP!!!!!!!
will mark brainliest!!!!

Answers

Answer:

8 IN by 6 in

Step-by-step explanation:

Hope it helps :)

HELP ME PLEASE WRITEEEEE

Answers

Answer:

Initial value is the y- intercept and the change per month is the slope.

The slope is $25, which is an increase rate per month.The y- intercept is $525, which is the investment amount.

The model function is:

f(x) = 25x + 525

Standard deviation of a sample means

Answers

Answer:

statistical metric that is used to measure the extent by which a random variable diverges from the mean of the sample

Step-by-step explanation:

Sample standard deviation refers to the statistical metric that is used to measure the extent by which a random variable diverges from the mean of the sample and it is calculated by adding the squares of the deviation of each variable from the mean, then divide the result by a number of variables minus and then computing the square root in excel of the result.

Hope this helps :}

Pls mark brainliest :P

And have an amazing day <3

Answer:

A sample standard deviation is a statistic. This means that it is calculated from only some of the individuals in a population. Since the sample standard deviation depends upon the sample, it has greater variability. Thus the standard deviation of the sample is greater than that of the population.

Step-by-step explanation:

Add the linear expressions
(-4x – 2 – x) + (2x − 2)
What is the sum?
Enter your answer in the box.

Answers

Answer:

-3x -4

Step-by-step explanation:

did the test

Which equation is correct?

8 dot 8 equals 8 Superscript 2 equals 16.
9 dot 9 equals 2 left-parenthesis 9 right-parenthesis equals 18.
10 dot 10 equals 2 left-parenthesis 10 right-parenthesis equals 100.
11 dot 11 equals 11 Superscript 2 equals 121.

Answers

The equation that is correct is 11.11 = 11² = 121. The correct answer is the fourth option: 11 dot 11 equals 11 Superscript 2 equals 121 (11.11 = 11² = 121)

From the question,

We are to determine which of the options is correct.

To determine which of the options is correct, we will evaluate the options one after the other.

For the first option

8 dot 8 equals 8 Superscript 2 equals 16

That is,

8.8 = 8² = 16

Evaluating properly

8.8 = 8² = 8 × 8 = 64

Then, 8.8 = 8² ≠ 16

∴ This is NOT correct

For the second option

9 dot 9 equals 2 left-parenthesis 9 right-parenthesis equals 18

That is,

9.9 = 2(9) = 18

Evaluating properly

9.9 = 9 × 9 = 9² = 81

Then, 9.9 ≠ 2(9) = 18

∴ This is NOT correct

For the third option

10 dot 10 equals 2 left-parenthesis 10 right-parenthesis equals 100

That is,

10.10 = 2(10) = 100

Evaluating properly

10.10 = 10 × 10 = 10² = 100

Then, 10.10 ≠ 2(10) ≠ 100

∴This is NOT correct

For the fourth option

11 dot 11 equals 11 Superscript 2 equals 121

That is,

11.11 = 11² = 121

Evaluating properly

11.11 = 11² = 11 × 11 = 121

Then, 11.11 = 11² = 121

This is correct.

Hence, the equation that is correct is 11.11 = 11² = 121. The correct answer is the fourth option: 11 dot 11 equals 11 Superscript 2 equals 121 (11.11 = 11² = 121)

Learn more here: https://brainly.com/question/12872403

solve pls brainliest

Answers

Answer:

a. Elsa's total change of her stocks is $448.

b. The change of the club's size each week was -5 members.

Step-by-step explanation:

a. The value of one share increased by 8 dollars. Elsa has 56 shares of that certain stock.

Given the information above, multiply [tex]56[/tex] × [tex]8[/tex] to find the total change in her stocks.

[tex]56[/tex] × [tex]8=448[/tex]

b. 30 members left a club on 6 weeks.

Given the information, divide [tex]-30[/tex] ÷ [tex]6[/tex] to find the amount of members leaving the club per week.

[tex]-30[/tex] ÷ [tex]6=-5[/tex]

A field is a rectangle with a perimeter of 1200 feet. The length is 200 feet more than the width. Find the width and length of the rectangle field

Answers

the length is 400 and the width is 200!!

Answer:

Step-by-step explanation:

let the width be w

p=l*w

1200= 200*w

1200= 200w

1200 = 200w

6 feet = w

width is 6 feet

let the length be a

p = l* w

1200 = a* 6

1200 = 6a

1200 = 6a

200 feet  = a

length is 200 feet

Question is attached.
Step by step explanation needed!​

Answers

Refer to the Attachment.

Hence proved.

Refer to the attachment

Given lines are parallel, find the value of x.
Then determine the measure of the angle.

Answers

Answers:

x = 45angle measure = 104 degrees

============================================================

Explanation:

These angles are on alternating sides of the transversal line, and they are exterior of the parallel lines. Therefore, these are alternate exterior angles.

Alternate exterior angles are congruent when we have parallel lines like this.

Set the two expressions equal to each other. Solve for x.

3x-31 = x+59

3x-x = 59+31

2x = 90

x = 90/2

x = 45

Then we can find that:

3x-31 = 3*45-31 = 135-31 = 104x+59 = 45+59 = 104

Both alternate exterior angles are 104 degrees each, which confirms we have the correct x value.

what is the squareroot of 144​

Answers

Answer:

The square root of 144 is 12

Step-by-step explanation:

[tex]\sqrt{144} = 12[/tex]

because 12 x 12 = 144

it's basically 12 doubled... [tex]12^{2}[/tex]

Answer:

12 is the square root of 144.

Step-by-step explanation:

That means if you multiply 12 by 12, you will get 144.

That's called 12² (12 squared)

The square root is the opposite of that. √144=12.

Keep in mind that 12*12=144.

Hope this helps!

[tex]GraceRosalia[/tex]

Write the equation of the horizontal line that goes through the
point (9,6).

Answers

Answer: y=6

Explanation: If you put the equation y=6 into graph form (as seen in the picture below) you will have a horizontal line that goes through the point (9,6)

(P.S the black dot represents the point (9,6))

How many vertices can be connected in 351 ways?

Answers

Answer: A spanning tree

Step-by-step explanation:

Reasoning Practice
w
w
w
w
20
3
W
Х
Х
24
w
Х
Х
Y у
25
w
Х
Y у
Z
30
The sum of each row is given. Find w, x, y and z.

Answers

5

Step-by-step explanation:

Suppose that the members of a student governance committee will be selected from the 40 members of the student senate. There are 18 sophomores, 12 juniors and 10 seniors who are members of the student senate. In how many ways can the governance committee be selected, if it must be made up of 2 sophomores, 2 juniors and 3 seniors? Assume that each of the sophomores, each of the juniors and each of the seniors is equally likely to be selected for the committee.

Answers

Using the combination formula, it is found that the committee can be selected in 1,211,760 ways.

Combination formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by:

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

In this problem:

2 sophomores from a set of 18.2 juniors from a set of 12.3 seniors from a set of 10.

They are independent, so we can just multiply them, thus:

[tex]T = C_{18,2} \times C_{12,2} \times C_{10,3} = \frac{18!}{2!16!} \times \frac{12!}{2!10!} \times \frac{10!}{3!7!} = 1211760[/tex]

The committee can be selected in 1,211,760 ways.

A similar problem is given at https://brainly.com/question/24650047

PLEASE HELP ITS MATH THANK YOUUUU

Answers

Answer:

38 yards because you add all them together

What is the area of a rectangle with a length of 5 units and a width of 8 units

Answers

Answer:

40 square units

Step-by-step explanation:

A = LW

A = 5 units x 8 units

A = 40 square units

Answer:

40^2

Step-by-step explanation:

The formula for finding the area of a triangle is length times width. So all you have to do is multiply the length 5 and width 8 together to give you 40. Therefore, the area of the rectangle is 40^2.

Find the volume of the sphere. Use 3.14 for n. Round to the nearest tenth. radius= 6ft.​

Answers

18.84 because I said so
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