Solve the system:
4x – 3y = -21
X=-y-14

Answer:

-18

Step-by-step explanation:

Answer:

-18

Step-by-step explanation:

Answer:

multiply by 12 and would serve 18 people

Step-by-step explanation:

I did a test for it

Answer:

We multiplied the original recipe by 3/2 or 1 1/2, the new recipe will serve 18 people.

Step-by-step explanation:

to get 1 to 3 you multiply it by 3 and to get 4 to 8 you multiply it by 2 so you end up with 3/2 or 1 1/2

Population is like superset of sample. The population and sample for this case are:

The difference between population and sample is that sample is taken from the population.

We do sampling so that we don't have to work on entire population of items but only on that sample in a way that we can predict information about population.

Most of the times, it isn't possible in real world to work on entire populations. Samples come out for rescue by assumptions that they will have some properties of the population pertained in them.

Thus, the sample should be taken out such that it includes data of the population as much  as it can in unbiased way so as to imitate population.

For this case, we have:

75 students were randomly selected from the junior class at a high school.

Since 75 students were selected from junior class, thus:

Learn more about sampling here:

https://brainly.com/question/24842573

Answer:

Step-by-step explanation: second part is 15-55

Answer:

its the 2nd one

Step-by-step explanation:

The answer is 240.4cm^2

Or the second one

Answer:

-36

Step-by-step explanation:

4 x -9 = -36

This is how I interpreted the question, feel free to correct me if I am wrong.

Answer:

4. obtuse

5. obtuse

6. acute

7. acute

8. obtuse

Step-by-step explanation:

4. This angle is greater than a right angle (because it extends farther than one), so this is obtuse.

5. This angle is greater than a right angle, so this is obtuse.

6. This angle is smaller than a right angle (because it extends less than one), so this is acute.

7. This angle is smaller than a right angle, so this is acute.

8. This angle is greater than a right angle, so this is obtuse.

The dot on the number line, that Craig says shows a value of one third

is halfway between 0 and one half which is one quarter therefore;

A possible number line obtained from a similar question posted on a

website online is attached;

From the attached drawing, we have, that the half-way marking between

1 and 0 is 2/3, and the half way between 0 and 2/3 is 1/3. However, half

between 0, and 1 is 1/2

Therefore, the half-way marking should be 1/2 rather than 2/3

Which gives;

Learn more about distances on the number line here;

https://brainly.com/question/11295918

Answer:

C. density = mass / volume

Step-by-step explanation:

Answer:

P (rosemary) = 9/19

Step-by-step explanation:

Given :-

To Find :-

Solving :-

Answer:

5

Step-by-step explanation:

Answer:

12340milliters

Step-by-step explanation:

is the right answer

Answer:

12.34 liters  = 12340 milliliters

Step-by-step explanation:

Lets see

[tex]\\ \rm\longmapsto I=\dfrac{PRT}{100}[/tex]

[tex]\\ \rm\longmapsto P=\dfrac{100I}{RT}[/tex]

[tex]\\ \rm\longmapsto P=\dfrac{360000}{9}[/tex]

[tex]\\ \rm\longmapsto P=Rs.40000[/tex]

Solution:

We know that:

Let "P" represent the money Anita borrowed.

[tex]\dfrac{\text{P} \times 3 \times 3}{100} = 3,600[/tex]

[tex]\rightarrow \dfrac{\text{P} \times 9}{100} = 3,600[/tex]

[tex]\rightarrow \dfrac{\text{P} }{100} = 400[/tex]

[tex]\rightarrow \ \text{P }= \text{R.S} \ 40000[/tex]

Answer:

B

Step-by-step explanation:

1/2=20 * t

t=1/2 * 1/20

t=1/40

Brainliest pleasr

Answer:

-2

Step-by-step explanation:

Answer:

= x^2 -9x-3x+27

= x (x-9) -3 (x-9)

= (x-3) (x-9)

Answer:

it is 0.75 (1/4)+ (2/3)-(1/6)=0.75=3/4

Answer:

a₅=27.

Step-by-step explanation:

1) according to the condition the given subsequence is arithmetic sequence. It means, the a₁=7 and d=5, then

2) a₅=a₁+4*d; => a₅=7+4*5=27.

Answer: B in 4 - 2 in x + 5 in y

Step-by-step explanation:

Answer:

Thanks for the points! <3

y = (-2) - 6 = -8

y = (-1) - 6 = -7

y = (0) - 6 = -6

y = (1) - 6 = -5

y = (2) - 6 = -4

-2 = -8

-1 = -7

0 = -6

1 = -5

2 = -4

Answer:

Step-by-step explanation:

6) √48, √12

√48 = √4² x 3 = 4√3

√12 = √2² x 3 = 2√3

= 4√3, 2√3

7) √28, √63

√28 = √2² x 7 = 2√7

√63 = √3² x 7 = 3√7

=2√7, 3√7

8) ⁴√32, ⁴√162

⁴√32 = ⁴√2⁴ x 2 = 2 ⁴√2

⁴ √162 = ⁴√3⁴ x 2 = 3 ⁴√2

=2 ⁴√2, 3 ⁴√2

9) ∛40, ∛135

∛40 = ∛2³ x 5 = 2∛5

∛135 = ∛3³ x 5 = 3∛5

=2∛5, 3∛5

10) √8, √200

√8 = √2² x 2 = 2√2

√200 = √10² x 2 = 10√2

=2√2, 10√2

-{ModPatrol}

Answer:

[tex]k=6, k=-1[/tex]

Step-by-step explanation:

                         [tex]\dfrac{k+3}{3}-\dfrac{2}{k-5}=1[/tex]

[tex]\implies \dfrac{(k+3)(k-5)}{3(k-5)}-\dfrac{3 \cdot 2}{3(k-5)}=1[/tex]

[tex]\implies \dfrac{k^2-2k-15-6}{3(k-5)}=1[/tex]

[tex]\implies k^2-2k-21=3k-15[/tex]

[tex]\implies k^2-5k-6=0[/tex]

[tex]\implies (k-6)(k+1)=0[/tex]

[tex]\implies k=6, k=-1[/tex]

Answer:

Step-by-step explanation:

x=4

Answer: y= 13/3−x/3

Step-by-step explanation:

The slope of a line passing through two points P=(x1,y1) and Q=(x2,y2) is given by m=y2−y1x2−x1.

We have that x1=−2, y1=5, x2=1, y2=4.

Plug the given values into the formula for a slope: m=4−(5)1−(−2)=−13.

Now, the y-intercept is b=y1−mx1 (or b=y2−mx2, the result is the same).

b=5−(−13)(−2)=13/3

Finally, the equation of the line can be written in the form y=b+mx:

y=13/3−x/3

Answer:

-1/3

Step-by-step explanation:

Answer:

twelve twenty four thirty two lol

Answer:

1, 0

Step-by-step explanation:

Let [tex]\cos (x+2\pi) = -\frac{\sqrt{2}}{2}[/tex]. From Trigonometry we remember the following identity:

[tex]\cos (a+b) = \cos a \cdot \cos b - \sin a \cdot \sin b[/tex] (Eq. 1)

Where [tex]a[/tex] and [tex]b[/tex]  are angles measured in radians.

Then, we proceed to expand the given expression:

[tex]\cos x \cdot \cos 2\pi - \sin x \cdot \sin 2\pi = -\frac{\sqrt{2}}{2}[/tex]

[tex]\cos x \cdot 1 - \sin x \cdot 0 = -\frac{\sqrt{2}}{2}[/tex]

[tex]\cos x = -\frac{\sqrt{2}}{2}[/tex]

Therefore, correct answer is "1, 0".

Answer:

A 1;0

Step-by-step explanation:

Answer:

$11,000 = 1404.7yuan

Step-by-step explanation:

$1 = 0.1277 yuan (multiply both sides by 11,000)

$1 × 11,000 = 0.1277 × 11,000 yuan

$11,000 = 1404.7 yuan

Answer: 2m + c  =4

Step-by-step explanation:

Let m = Number of multiple-choice questions

c = Number of constructed response questions

For Summer,

Total marks = 12m + 4c

For kerry,

Total marks = 10m+3c

Summer scored eight points more than Kerry implies

12m + 4c = 4+(10m+3c)

⇒ 12m + 4c =  4+ 10m+3c

⇒  12m + 4c - 10m-3c =4

⇒  2m + c  =4

Hence, required equation that shows how much each multiple-choice question (m) and each constructed response question (c) is worth. :

2m + c  =4