what the answer subtitution of x=6+y and ×-4y=21

Answers

Answer 1

x= 6 + y
x - 4y= 21

The first equation is already solved for x. Take the value of x (6 + y) and substitute it for the x value in the second equation.

x - 4y= 21
(6 + y) - 4y= 21
combine like terms
6 - 3y= 21
subtract 6 from both sides
-3y= 15
divide both sides by -3
y= -5

Substitute the -5 for y in the equation to solve for x

x - 4y= 21
x - 4(-5)= 21
x + 20= 21
subtract 20 from both sides
x= 1

CHECK:
x= 1
y= -5

x= 6 + y
1= 6 + (-5)
1= 1

ANSWER: x= 1 and y= -5

Hope this helps! :)

Answer 2

x=1 y=-5 hope this helped

Related Questions

A swimming pool is Mark down to 695 from 1225,what is the percent markdown?

Answers

Aloha!
The percentage markdown from 1225 to 695 is: 56.78%
So, the swimming pool has a 56.78% markdown.

Adios! :)

[tex]\text {Markdown = } 1225 - 695 = 530[/tex]

[tex]\text {Percentage Markdown = } \dfrac{530}{1225} \times 100[/tex]

[tex]\text {Percentage Markdown = } \dfrac{53000}{1225} [/tex]

[tex]\text {Percentage Markdown = } 43.27 \ \% \text { (nearest hundredth)}[/tex]

Carrie is buying bulk candy for a high school fundraiser. She buys 1000 candy bars for $350. What is the unit cost per candy bar?
A) $.30
B) $.35
C) $.45
D) $1.35

Answers

Turn this problem into a fraction.
350/1,000 = 0.35

The answer is B - $.35

B). $.35

Unit cost = total cost / total no. of units
= $350 / 1000
= $.35

The sum of three consecutive numbers is 57, what is the largest of these numbers

Answers

Answer:

Step-by-step explanation:

it is good

7 yd 2 ft = How many feet ?

Answers

1 yard = 3 feet

7 yard = 21 feet

21 + 2 = 23 feet

3*7+2= 23 feet is your answer

What is 555.555 rounded to the nearest hundredth?

Answers

555.6 is the answer ahve a nice day

555.56 is the answer.

Which graph shows a proportional relationship?

Answers

Answer: The only graph that shows a proportional relationship is the line that crosses the origin point (0,0).

Explanation

The other graphs are linear functions but not not proportional relationships.

The general form of a proportional relationship is y = kx, where k is the proportionality constant. So, for x = 0 you will always obtain y = 0.

The general form of a linear relationshio is y = kx + b, being b the y-intercept, so if the y-intercept is not 0, it is not a proportional relationship. That is what happens with the other three graphs.

A graph that shows a proportional relationship include the following; A. graph A.

What is a proportional relationship?

In Mathematics and Geometry, a proportional relationship is a type of relationship that passes through the origin (0, 0) and produces equivalent ratios as represented by the following mathematical equation:

y = kx

Where:

y represents the y-variable.x represents the x-variable.k is the constant of proportionality.

In conclusion, the characteristics for a graph that shows a proportional relationship include the following:

A straight line can be drawn through its points.

The straight line connecting the points passes through the origin.

Read more on proportional relationship here: brainly.com/question/28350476

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Please help find the area of this just need answer no work is needed

Answers

Base x width x height = area
The answer is 1044.

what is the value of 4 in 546210

Answers

The value of 4 in 546210 is 40000.
To find the answer, you just need to understand one 'trick': replace al the following numbers with zeroes and delete the numbers which are in front of the number you are looking for, so: 546210 -> 540000 -> 40000
(In words, your answer is fourty thousand)

Figure ABCD is a parallelogram.
What is the value of x?

Answers

X=7 because the side with the equation is the same length as the side that’s 38, so you just subtract 3 from 38 and then divide 35 by 5. You get 7. So, x=7

Hope this helps:)
Please rate branliest

Hey there :)

A parallelogram is a quadrilateral which has 2 parallel sides

We can conclude that
AD = BC
5x + 3 = 38
Subtract 3
5x = 38 - 3
5x = 35
Divide by 5 to isolate x
[tex] \frac{5x}{5} = \frac{35}{5} [/tex]
x = 7

Bryce has two small buckets each containing numbered tiles. The tiles in bucket A are the odd numbers from 1 to 31, one tile per number. The tiles in bucket B are the even numbers from 2 to 32, one tile per number. Bryce draws one tile from bucket A. On the number line below "Bucket A," select the point that represents the probability of drawing a tile that is a prime number from bucket A. He then draws one tile from bucket B. On the number line below "Bucket B," select the point that represents the probability of drawing a tile that is evenly divisible by 6 from bucket B.

Answers

A," select the point that represents the probability of drawing a tile that is a prime number from bucket A

total number of prime numbers in bucket A = 10( 3 5 7 11 13 17 19 23 29 31)

Probability = favorable outcomes/ total outcomes = 10/31

total number of numbers evenly divisible by 6 in bucket B = 5(6 12 18 24 30)

probability = 5/31

a 15-ft ladder is leaning against one wall of an alley 9 ft wide. the ladder slips, its top sliding down the wall, its foot sliding across the alley and striking the opposite wall at a speed of 4 ft/sec. How fast is the top of the ladder falling at that instance?

Answers

2x dx/dt +2y dy/dt = 0
x dx/dt + y dy/dt = 0
9*4 + 12 dy/dt = 0
dy/dt = - 3 ft/sec

Howard planted a tree in his front yard six months, one week, and two days ago. If today is August 13th, what day did Howard plant the tree in his yard?

A. February 4
B. February 13
C. February 20
D. February 22

Answers

For this to be easier, we know the date is February, since we are subtracting the 6 months. So let's start with February 13th, and subtract a week. One week is equal to 7 days, so 13-7= 6. We're now on February 6th, and we still have to subtract 2 days. 6-2=4, so we are at our date. A, Howard planted a tree in his front yard on February 4th.

Answer: February 4

Step-by-step explanation:

there are 33 seventh graders and 27 eighth graders in band, and 9 members of the band play trumpet. What decimal describes the portion of band members that play trumpet?

Answers

33+27=60. 9/60= .15 there's not much more to say.

Hey! I am stuck on this, it's for class. I've been struggling with this for quite some time. So, if you have the chance. Click the picture and tell me if it's true or false using that table thingy. Now, you don't need do explain if you don't want to. But, I just need the answer, and yeah. Just tell me if it's true or false. Thanks!! :-)

Answers

true false false

your WELCOME;)

1. False
2. True
3. True

what value of x satisfies 3x + 2 = 14?

Answers

Hey!
Your answer would be 4!
3*4+2=14
Hope this helped! Make sure to check my calculations before submit!
Godspeed
-Song

x=4 3 times 4 equals 12 plus 2 is 14

What are the amounts of interest and maturity value of a loan for 150,000 at 6 1/2% simple interest for 3 years?

Answers

The formula for computing the amount of simple interest is:

I = Prt

Where P = principal amount of the loan

r = interest rate of the loan

t = duration of the loan

Substituting the amounts in the formula,

I = (150,000) (6.5%) (3)

= 29,250

To compute for the maturity value, you have to add the interest to the principal amount:

Maturity value = 150,000 + 29,250 = 179,250

Final answer:

To calculate the amount of interest and maturity value of a loan, use the formula: Interest = Principal × Rate × Time. In this case, the interest is $29,250 and the maturity value is $179,250.

Explanation:

To calculate the amount of interest and maturity value of a loan, we can use the formula:

Interest = Principal × Rate × Time

Maturity Value = Principal + Interest

In this case, the principal is $150,000, the rate is 6.5% (0.065 in decimal form), and the time is 3 years.

Step 1: Calculate the interest

Interest = $150,000 × 0.065 × 3 = $29,250

Step 2: Calculate the maturity value

Maturity Value = $150,000 + $29,250 = $179,250

Therefore, the amount of interest is $29,250 and the maturity value of the loan is $179,250.

Learn more about Simple Interest here:

https://brainly.com/question/40405117

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can you tell me the solution to -3 (p + 1) equal to -18

Answers

-3p-3=-18
-3p=-18+3
-3p=-15
p=5

Hi there!

The answer to the inequality given is p ≥ 5

To get there follow these steps:
1. Distribute the -3, -3p-3≤-18
2. Add -3 to both sides, {-3p (-3 + 3 = 0) ≤ (-18 + 3 = -15)} = -3p ≤ -15
3. Divide both sides by -3, [tex] \frac{-3p}{-3} [/tex] ≤ [tex] \frac{-15}{-3} [/tex]
4. The final answer is p ≥ 5

If you need this graphed see below:

-ASIAX Frequent Answerer

Can someone please help

Answers

x= # tickets Shaun sold
1/2x+3= # tickets Trudy sold

Add them together.

= x + (1/2x + 3)
combine like terms
= (x + 1/2x) + 3
= 1 1/2x + 3
convert to improper fraction
= 3/2x + 3

ANSWER: 3/2x + 3 (3rd choice down)

Hope this helps! :)

If the height is 4.41 inches and the volume is 0.734, what will the side length of the pyramid’s base be? Is the number rational or irrational? Why?

Answers

The side length of the pyramid's base is approximately 0.7071 inches, and it is an irrational number.

To find the side length of the pyramid's base, we need to use the formula for the volume of a pyramid, which is given by:

[tex]\[ V = \frac{1}{3}Bh \][/tex]

where V is the volume, B is the area of the base, and h is the height of the pyramid.

Given that the volume V is 0.734 cubic inches and the height h is 4.41 inches, we can rearrange the formula to solve for the area of the base B :

[tex]\[ B = \frac{3V}{h} \][/tex]

Substituting the given values:

[tex]\[ B = \frac{3 \times 0.734}{4.41} \] \[ B = \frac{2.202}{4.41} \] \[ B \approx 0.5 \text{ square inches} \][/tex]

Now, assuming the base is a square (since we are looking for the side length), the area of the base B is also equal to the side length squared:

[tex]\[ B = s^2 \][/tex]

where $ s $ is the side length of the base. Therefore:

[tex]\[ s^2 = 0.5 \][/tex]

Taking the square root of both sides:

[tex]\[ s = \sqrt{0.5} \] \[ s \approx 0.7071 \text{ inches} \][/tex]

The side length of the pyramid's base is approximately 0.7071 inches.

To determine if this number is rational or irrational, we consider the definition of rational numbers. A rational number is one that can be expressed as the quotient of two integers. The square root of 0.5 can be rewritten as:

[tex]\[ s = \sqrt{0.5} = \sqrt{\frac{1}{2}} = \frac{\sqrt{1}}{\sqrt{2}} = \frac{1}{\sqrt{2}} \][/tex]

To rationalize the denominator, we multiply the numerator and the denominator by [tex]$ \sqrt{2} $[/tex]:

[tex]\[ s = \frac{1}{\sqrt{2}} \times \frac{\sqrt{2}}{\sqrt{2}} = \frac{\sqrt{2}}{2} \][/tex]

Since [tex]$ \sqrt{2} $[/tex] is an irrational number, the side length s is also irrational because it cannot be expressed as the quotient of two integers.

Find the perimeter of a semi-circle with the diameter of 4 feet please.

Answers

the answer is 4pi yay[tex] \pi [/tex]

If a quadrilateral has sides that measure 4 in. and angles that all measure 90°, we can consider the quadrilateral to be a/an

Answers

since all the sides are equal and the angles are 90 degrees
it would be a square

Player Points
Travis 6
Marcus 7
James 17
Taylor 2
Hector 1
Julio 22
Jonah 8
Chris 11
Scott 14

The chart shows the number of points different players scored during a game. What is the ratio of Julio's points to Jonah's points?
A) 1 : 2
B) 2 : 1
C) 4 : 11
D) 11 : 4

Answers

the answer is d 11:4

I believe the correct answer is D.

Rewrite the following equation in slope-intercept form. 3x − 18y = 20 Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer:
y = (1/6) x - (10/9)

Explanation:
The slope-intercept form has the following formula:
y = mx + c
where:
m is the slope
c is the y-intercept

The given is:
3x - 18y = 20

To put this in slope-intercept form, we will need to isolate the y as follows:
3x - 18y = 20
18y = 3x - 20
y = (3/18) x - (20/18)
y = (1/6) x - (10/9)
where:
m is the slope = 1/6
c is the y-intercept = -10/9

Hope this helps :)

Y= 0
3x = 20
X = 20/3

X = 0
-18y = 20
Y = 20/-18
Simplified equal
10/-9

Which formula can be used to describe the sequence? , −4, −24, −144,...

Answers

-4 to -24 you have to multiply 6

-24 x 6 = -144

Formula

a(n) = -4x6(n-1)

Answer:

[tex]An= -4(6)^{n-1}[/tex]

Step-by-step explanation:

−4, −24, −144,...

There is no common difference

-24/-4= 6

-144/ -24= 6

common ratio = 6

when there is a common ratio then it is an Geometric sequence

[tex]An= a1(r)^{n-1}[/tex]

a1 is the first term = -4

r is the common ratio = 6

Formula becomes

[tex]An= -4(6)^{n-1}[/tex]

are the expressions 3(y+1) and 3y+3 equivalent for any value of y? explain.

Answers

Yes they are the same hope I helped

brainliest pts pls

Someone plz help me with These questions :u have to solve for x and show work

4/9x+1/5x=87
-3.8x-5.9x=223.1
x+0.15x=3.45
-3/5x-7/10x+1/2x=-56

Answers

ok so the first one is
1.x=135
2.x=-23
3.x=3
4.x=70

A recipe for fruit punch uses 3 cups of apple juice for every 2 cups of grape juice. The table and graph show how many cups of each to use for different batch sizes. How many cups of grape juice do you need to make a batch that contains 12 cups of apple juice?

Answers

So... first you see that you have 12 cups of apple juice. Just do 12 divided by 3 and you'll get 4. Then break the 4 into ones and for every one you'll have two cups of grape juice. So.... 4 batches of punch will require 8 cups of grape juice.

What is the area of a circle with a radius of 7?

Answers

A = pi r^2
A = 3.14 x 7^2
A = 3.14 x 49
A = 153.86

Find the missing number(?) so that the equation has no solutions. ?x+3=3(-x+7)

Answers

I think the answer is -3

?x+3=3(-x+7)

?x+3=-3x-21

?x = -3x-21-3

?x +3x = -24

(?+3) x = -24

the equation has no solutions if (?+3)=0
?+3=0
? = -3

factory A has printed 700 books and Prints 50 new books every week. Factory has printed 300 books and prints 100 books every week. How many weeks will it be before a factory B has printed as many books as Factory A?

Answers

8 weeks. By that time both factories will have printed 1,100 books
Hope this helps

700 - 300 = 400
400/ 100 = 4
4 x 50 = 200
200/ 100 = 2

2+4= 6
6 weeks

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