Using substitution to alive equation with two variables

Using Substitution To Alive Equation With Two Variables

Answers

Answer 1

Answer:

X=27

Step-by-step explanation:

-4•4= -16

Move -16 to the other side

3x=81

x=27


Related Questions

If the side dimensions of two cubes are 8 inches and 12 inches, how many small cubes can fit in the larger one?

Answers

Answer:

3

Step-by-step explanation:

8^3 = 512

12^3 = 1728

1728/512 = 3.375

So, 3 cubes can fit

HELP i will give brainly

HELP i will give brainly

Answers

Answer:

c

Step-by-step explanation:

HOURS MILES WALKED Y/X 2 3 4 6 6 a 8 12 k: what is the answer​

Answers

Answer:

12 number for theanswer of that question answer

Help! 15 points!

I need help with 40-43. The constant is 1/3 and the direct proportion equation is y=1/3x

Help! 15 points!I need help with 40-43. The constant is 1/3 and the direct proportion equation is y=1/3x

Answers

3 I thank I thank it is but I’m not sure

Sasha is 3/5 of a mile from school, she walks 1/5 of the distance. How far does Sasha have to travel to reach school?

Quotient
Quotient W: 3
Quotient X: 4/10
Quotient Y: 1 2/12
Quotient Z: 3/25

Answers

Answer:

The answer is Quotient X: 4/10

3/5 minus 1/5 is 2/5. 4/10 can be simplified to 2/5, which is the answer.

Quotient X.


Explanation:

3/5-1/5=2/5

4/10 can be simplified to 2/5, therefore, Quotient X is the correct answer.

Hope this helps!

Please help me. X/6 ≥ 7. I also need to know how this would be graphed thank you.

Answers

Answer: The inequality solves to x ≥ 42

The graph is shown below

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

Explanation:

We have some unknown number x, and we're dividing by 6 to form the fraction x/6. That result is 7 or larger which means we write x/6 ≥ 7

To solve for x, we undo the division. We'll multiply both sides by 6. That's how we get to x ≥ 42

The graph will involve a number line. Plot a closed filled in circle at 42 on the number line. Shade to the right. This visually represents any number that is 42 or larger. The endpoint 42 itself is included in the solution set.

Side note: We would use an open circle if we didn't have the "or equal to" portion for the inequality sign.

Please help me. X/6 7. I also need to know how this would be graphed thank you.

Answer:

The inequality solves to x ≥ 42

The graph is shown below

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

Step-by-step explanation:

We have some unknown number x, and we're dividing by 6 to form the fraction x/6. That result is 7 or larger which means we write x/6 ≥ 7

To solve for x, we undo the division. We'll multiply both sides by 6. That's how we get to x ≥ 42

The graph will involve a number line. Plot a closed filled in circle at 42 on the number line. Shade to the right. This visually represents any number that is 42 or larger. The endpoint 42 itself is included in the solution set.

Side note: We would use an open circle if we didn't have the "or equal to" portion for the inequality sign.

Step-by-step explanation:

When a car goes around a corner at 20 mph, why do we say it accelerates?

Answers

Because when something accelerates it is either a decrease or increase in speed or a change in direction

Answer:

when something accelerates it is either a decrease or increase in speed or a change in direction

Step-by-step explanation:

PLZZZZZ HELP The steps below show the incomplete solution to find the value of n for the equation (4n − 2n + 4 = −1 + 17) :
Step 1: 4n − 2n + 4 = −1 + 17
Step 2: 4n − 2n + 4 = 16
Step 3: 2n + 4 = 16 Which of these is most likely the next step?
2n = 12
2n = 4
2n = 8
2n = 20

Answers

Answer:

2n=12

Step-by-step explanation:

next step:

2n=16-4

2n=12

Answer:

2n+4=16

Step-by-step explanation:

2n=16-4

2n=12

Fill in the missing digits to complete the division problem. CLEAR CHECK 9 3 | 3 2 7 6 9 − 2 7 ↓ ↓ 0 6 − 0 0 − 0

Answers

You need to add more information please. So I can answer.

I have 60% on my iPad and my brother has 90% on his how much more percentage I need as a fraction.

Answers

Answer:

1/3

Step-by-step explanation:

just convert it?

3/10

Step-by-step explanation:

60% is the same as 60/100

90% is the same as 90/100

90-60=30

30/100

30/100 is divided by 10 on each side to simplify it to 3/10

Create an equivalent expression for 12 ^ −7 • 12 ^ 5


-12 ^ 2

12 ^ 2

1 / (12 ^ -2)

1 / (12 ^ 2)

Create an equivalent expression for 12 ^ 7 12 ^ 5-12 ^ 212 ^ 21 / (12 ^ -2)1 / (12 ^ 2)

Answers

Answer:

1/(12^2)

Step-by-step explanation:

12^ -7 × 12^5

= 12^-7+5

= 12^5+(-7)

= 12^5-7

= 12^-2

= 1/(12^2)

The other person was right 1 / (12 ^ 2)

Which of the following tables represents a linear relationship that is also proportional?


A:
x y

0 2

4 4

8 6


B:
x y

0 0

2 1

4 2


C:
x y

0 1

5 3

10 5


D:
x y

0 3

3 7

6 11

Answers

Answer: A

Step-by-step explanation: you cross multiply

The correct answer will get Brainliest. Correct answers to my other questions will get Brainliest also.

What are AE, CE?

The correct answer will get Brainliest. Correct answers to my other questions will get Brainliest also.What

Answers

Answer:

\(AE=7, CE=4\sqrt{2}\)

Step-by-step explanation:

By the Pythagorean theorem, \(CD=\sqrt{9^2-3^2}=6\sqrt{2}\). Since \(\triangle ADC \cong \triangle ADB\) by HL, \(CB=12\sqrt{2} \implies CB=288\).

Using the Pythagorean theorem on \(\triangle CEB\) yields \((CE)^2+(AE+9)^2=288\).

Using the Pythagorean theorem on \(\triangle CEA\) yields \((CE)^2+(AE)^2=81\).

Subtracting the equations yields \((AE+9)^2-(AE)^2=207\).

\((AE)^2+18(AE)+81-(AE)^2=207 \\ \\ 18(AE)=126 \\ \\ AE=7\)

Substituting this result back into the first equation yields \(CE=4\sqrt{2}\).

Two cards are selected from a standard deck of 52 playing cards. The first card is not replaced before the second card is selected. Find the probability of selecting a four and then selecting a king.

Answers

Answer:

0.006%.

Step-by-step explanation:

In a standard deck of cards, there should be four 4 cards and four king cards. We first want the probability of selecting a 4 card, which is just

\($\frac{4}{52}.$\)

Then we want it for the king card, but since we didn't replace the first card, we only have 51 cards left. This implies our probability is

\($\frac{4}{51}.$\)

Now, all we have left is to multiply the two fractions and divide by the denominator:

\($\frac{4}{52} \cdot \frac{4}{51} = \frac{16}{2652} = \frac{4}{663} = 0.006.$\)

please answer quickly

please answer quickly

Answers

Answer:

37.5

Step-by-step explanation:

cosФ = \(\frac{A}{H}\)

cos(33°35') = \(\frac{m}{45}\)

m = 45 × cos(33°35')

m = 37.5 (1d.p.)

The answer is 37.5. Due to S o/h C a/h T o/a

What is the 30th term of the linear sequence? -5, -2, 1, 4, 7​

What is the 30th term of the linear sequence? -5, -2, 1, 4, 7

Answers

Answer:

the 30th number would be "82"

Step-by-step explanation:

it is adding by 3

30 would be 82 and it is adding by 3

Hello, what are the answers to these questions?

Hello, what are the answers to these questions?
Hello, what are the answers to these questions?

Answers

Answer:

84:7 = 12:1 (B)

250:400 = 5:8 (V)

4:80 = 1:20 (G)

40:20 = 2:1 (N)

12:108 = 1:9 (E)

270:30 = 9:1 (U)

55:33 = 5:3 (D)

560:80 = 7:1 (S)

75:55 = 15:11 (A)

24:28 = 6:7 (I)

63:33 = 21:11 (Y)

1,000:100 = 10:1 (R)

20:340 = 1:17 (M)

10:30 = 1:3 (O)

44:11 = 4:1 (H)

32:18 = 16:9 (T)

Those are the answers for the first image.

Hope that helps. x

a dental filling is 9 carats. what percent of the filling is gold?

Answers

Answer:

Lower than 50%

Step-by-step explanation:

solve this equation
1/4a+3=31

Answers

solution of 1/4a+3=31 is a=112

\(\frac{1}{4}\)a+3=31

Transposing 3 to RHS we get

\(\frac{1}{4}\)a=31-3

\(\frac{1}{4}\)a=28

dividing1/4 with 28

a=28 x4/1

we did this because in fraction division we multiply its inverse by the dividend.

∴a=112.

To know more about fraction division:

https://brainly.com/question/1622425

A: 112
1/4a + 3 = 31
112 (divided by 4, 1/4) = 28
28 + 3 = 31
31 = 31

0.11 to the second power

Answers

Answer:

0.0121

Step-by-step explanation:

0.11 to the second power = 0.0121

Answer: 0.0121

Step-by-step explanation:

common sense

Is anyone able to figure this out, I can't do this

Is anyone able to figure this out, I can't do this

Answers

Answer:

C. √2 - 1

Step-by-step explanation:

If we draw a square from the center of the large circle to the center of one of the small circles, we can see that the sides of the square are equal to the radius of the small circle (see attached diagram)

Let r = the radius of the small circle

Using Pythagoras' Theorem \(a^2+b^2=c^2\)

(where a and b are the legs, and c is the hypotenuse, of a right triangle)

to find the diagonal of the square:

\(\implies r^2 + r^2 = c^2\)

\(\implies 2r^2 = c^2\)

\(\implies c=\sqrt{2r^2}\)

So the diagonal of the square = \(\sqrt{2r^2}\)

We are told that the radius of the large circle is 1:

⇒ Diagonal of square + r = 1

\(\implies \sqrt{2r^2}+r=1\)

\(\implies \sqrt{2r^2}=1-r\)

\(\implies 2r^2=(1-r)^2\)

\(\implies 2r^2=1-2r+r^2\)

\(\implies r^2+2r-1=0\)

Using the quadratic formula to calculate r:

\(\implies r=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\)

\(\implies r=\dfrac{-2\pm\sqrt{2^2-4(1)(-1)}}{2(1)}\)

\(\implies r=\dfrac{-2\pm\sqrt{8}}{2}\)

\(\implies r=-1\pm\sqrt{2}\)

As distance is positive, \(r=-1+\sqrt{2}=\sqrt{2}-1\)  only

Is anyone able to figure this out, I can't do this
The answer to your equation is C

I NEED THIS NOW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
For each of the figures, write Absolute Value equation in the form

|x−c=d|, where c and d are some numbers, to satisfy the given solutions:

I NEED THIS NOW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!For each of the figures, write Absolute Value

Answers

point c is at -4 and point d is at -8
C is -4 and D is -8 where c and d r some numbers!

help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:  60 local calls- SEE THE SCREENSHOTS FOR A DETAILED STEP BY STEP RESPONSE :)

also daM, that's a lot of calls

Step-by-step explanation:

help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer: 60 local calls bcz you remove the other 2 charges then divide by .25

Step-by-step explanation:

7th grade math I'll give brainliest

7th grade math I'll give brainliest

Answers

Answer:

Step-by-step explanation:

Rise over run is the slope, m

m=2/5

a)  the slope is 2/5 = .4 which is below the boundary guideline.  So no this is not with in carpenter's guidelines

b) the image below show a line with slope 2/5 but with intercept 3

c) the stairs can be draw on the line with rise 2 run 5   from the line.  see image

d)equation is in image

2.

a) count the squares

horizontal distance =3

vertical distance =3

b)  slope is vertical distance over horizontal distance  so m= 3/3 =1

7th grade math I'll give brainliest
7th grade math I'll give brainliest

1. What is the distance between the points (4,-7) and (-5,-7)?

A. 1 unit B. 3 units C. 7 units D. 9 units.


2. Fill in the blanks. Write the coordinates of two points that are the given distance from these points and horizontal/vertical:

2. 5 units from (-1,-2) ( ,-2 and ( ,-2)


3. 8 units from (2,4) (2, ) and (2, )


4. 3 units from (-7,-5) (-7, ) and (-7, )


5. 6 units from (4,-1) (4, ) and (4, )


6. 10 units from (-1,9) ( ,9) and ( ,9)


7. 7 units from (-3,2) ( ,2) and ( ,2)

Answers

Answer:D. 9 units 2. (-6,-

Step-by-step explanation:What is the distance between the points (4,-7) and (-5,-7)? A. 1 unit B. 3 units C. 7 units D. 9 units. 2. Fill in the blanks. Write the coordinates of two points that are the given distance from these points and horizontal/vertical: 2. 5 units from (-1,-2) ( ,-2 and ( ,-2) 3. 8 units from (2,4) (2, ) and (2, ) 4. 3 units from (-7,-5) (-7, ) and (-7, ) 5. 6 units from (4,-1) (4, ) and (4, ) 6. 10 units from (-1,9) ( ,9) and ( ,9) 7. 7 units from (-3,2) ( ,2) and ( ,2)

Answer:

1. D

Step-by-step explanation:

You can add the X coordinates together and you will get the length (sorry I can't answer the others ones I don't have enough time rn)

While in flight, a hot air balloon decreases its elevation by 83 2/5 meters and then increases its elevation by 83.7 meters.


Enter an inequality in the box to compare the changes in elevation of the hot air balloon while in flight.


2/5 83 >83.7


2/5 83<83.7


2/5 83 = 83.7

Answers

2/5 83 = 83.7 = Answer

Answer:

2/5 83 = 83.7

Step-by-step explanation:

HELP?!!!! ITS A A AND B QUESTION

HELP?!!!! ITS A A AND B QUESTION

Answers

Answer:

A: 80 and B: 5.5

Step-by-step explanation:

For A, just multiply 20 and 4 and which you would get 80 miles. And for B, if 1 inch is equal to 20 miles, you can divide 110 and 20 but the answer will be 5.5 rather than 5.

I think this is right but if you can, try and see if it’s correct later.

Answer:

The person who answered first is correct.

Step-by-step explanation:

How did you decide where to place your line of best fit? Describe your reasoning.

Based on your data, describe the relationship between age and the number of U.S. states a person can name in 60 seconds.
Do you see any areas in your data or points that could be considered clusters or outliers? Explain your answer in complete sentences.

Trolls will be reported

How did you decide where to place your line of best fit? Describe your reasoning.Based on your data,

Answers

Answer:So I don’t know the other 5 points because you didn’t give the data about the age and number of US states named in 60 seconds, but using the 5coordinate points you gave, I was able to make this line of best fit.

So basically the units are counting up by 5.

The x axis is age in years and y axis is the number of US states named in 60 seconds.

Since you didn’t give me the data to make the other 5 points, I can’t really answer the last question, but from the graph that I did make, there are no points that would be considered outliers, and there are no clusters in sight.

(BTW THIS IS IMPORTANT!! - when you use the data to add the other 5 points, there might be an outlier or more then one outlier. And there might be a cluster. Just look at it after you graph the last 5 and change the answer I gave you if there is an outlier or cluster)

Step-by-step explanation:

Jack read 20 pages of a book in 60 minutes. How many pages can he read in 75 minutes at the same rate? Write a proportional equation. Please help me answer this equation!!

Answers

Answer:

25 pages

Step-by-step explanation:

Create a proportion:

\(\frac{pages}{minutes}\) = \(\frac{20}{60}\) = \(\frac{x}{75}\)

Cross multiply and solve for x, the number of pages in 75 minutes:

60x = 1500

x = 25

So, he can read 25 pages in 75 minutes at the same rate

25 pages


He read 1 page in 3 minutes for 60 minutes 75 is 15 more than 60 so what time 3 would equal 15 It would be 5 so you would add 5 more pages to the 20 pages and you would get 25

!!!!!!!!!!!PLEASE ONLY ANWSER NUMBER 4!!!!!!!!!!!!!!!!! ( 20 points )
Three shipping companies want to compare the mean numbers of deliveries their drivers complete in a day.
The first two shipping companies provided their data from a sample of drivers in a table.

Company C showed its data in a dot plot.


Answer the questions to compare the mean number of deliveries for the three companies.

1. How many drivers did company C use in its sample?

2. What is the MAD for company C's data? Show your work.

3. Which company had the greatest mean number of deliveries?

4. Compare the means for companies A and B. By how many times the MAD do their means differ? Show your work.

!!!!!!!!!!!PLEASE ONLY ANWSER NUMBER 4!!!!!!!!!!!!!!!!! ( 20 points )Three shipping companies want to

Answers

Answer:

The means differ by 4 times the MAD.

Step-by-step explanation:

I may be missing something, but this is how I interpret it.

The mean number of deliveries for company A is 6, and the mean for company B is 14. Lastly, the mean absolute deviation (MAD) for both companies is 2.

\(14-6=8\\8\div2=4\)

The means differ by 8, and that is 4 times the MAD, so the means differ by 4 times the MAD.

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