4х – Зу = 15
x - 2y = 0 solve using substitution please show work

Answers

Answer 1

Answer:

(6,3)

Step-by-step explanation:

I'm going to start with the second one.

x - 2y = 0

   +2y  +2y

x = 0 + 2y   which is the same as (x = 2y)

Now plug that in for the x-value in the other equation.

4(2y) - 3y = 15

8y - 3y = 15

5y = 15

Divide both sides by 5

y = 3

Here is where you are going to plug it back into the first one we did.

x - 2(3) = 0

x - 6 = 0

  +6   +6

x = 6

So the answer is (6,3)

Hope that helps and have a great day!


Related Questions

which of the following is an equivalent form of the compound inequality -22>-5x-7>-3​

Answers

Answer:

Step-by-step explanation:

Move all terms not containing  x  from the center section of the inequality.

False

Or

Move all terms not containing the variable from the center section of the inequality.

No solution

Sorry, I couldn't fully understand your question but-

Hope This Helps!

Solve each equation!

Answers

Answer:

y = 6j = 1,000True (both sides are equal)False (sides of equation are not equal)

I hope this helps!

What is the square root of two?

Answers

Answer:

4

Step-by-step explanation:

Answer:1.41421356237

Step-by-step explanation:

Solve for x
3x/2 - 2 > 7​

Answers

Answer:

x>6

Step-by-step explanation:

answer is above

Answer:

x>6

Step-by-step explanation:

3x/2 - 2 > 7

+2>+2

3x/2>9

2(3x/2)>(9)2

3x>18

3x/3>18/3

x>6

Can someone help me please

Answers

Answer:

The answer is A.

Step-by-step explanation:

2x2x2= 8 but one of them fell off.

Please i Need ASAP
I will give brainliest to the correct answer!!!

Answers

Answer:

G because it doesn't have an angle to the line like it doesnt lose or pick up speed

Step-by-step explanation:

My calculations say this is N O

What is the value of x?
93
87 78
72

Answers

Answer:

72°

Explanation:

Given that line J and line K are parallel, we can safely assume that line m is the transversal for the following question. We can also remove line l so that we can focus on line m instead.

Using the rule of Alternate Exterior Angle theorem, x would equal to 72°.

Answer: 72

Now that we are told that J and K are parallel, we know that there can be a transversal line (m). You can see that m goes 72 degrees.

So, the answer is 72. Best of Regards!

Use the rule y = -x + 7 to fill in the blank
if (1, y) is on the graph, then y =

Answers

Answer:Y=6

Step-by-step explanation:

Y=-x+7

For -x put 1 for the -x

So y=-1+7

Y=6

True or False?

-6 is a solution for -4x > 16

Answers

Answer:

True

Step-by-step explanation:

-4x > 16

Divide each side by -4, remembering to flip the inequality since we are dividing by a negative

-4x/-4 < 16/-4

x < -4

-6 is less than -4 so -6 is a solution to the inequality

Answer: True

Step-by-step explanation:

It equals 24>16

Is the following relation a function?

Answers

Answer:

Step-by-step explanation:

It’s a function

Answer:

yes it is a function

Step-by-step explanation:

since the x values dont repeat itself like there are no two of any of the x values then it is a function

Consider this equation.


7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m - 0.8)



Mia solved the equation and determined that m = 2. Is she correct?

She is incorrect because when substituting 2 for m the result was a true statement.

She is incorrect because when substituting 2 for m the result was a false statement.

She is correct because when substituting 2 for m the result was a true statement.

She is correct because when substituting 2 for m the result was a false statement.

Can someone please help me?

Answers

Answer:

it's wrong

Step-by-step explanation:

because the answer in this 7.8 + 2(0.75m+ 0.4) is not 6.4

Answer:

B she is incorrect because when substituting 2 for m the result was a false statement

Step-by-step explanation:

i just did it on edge

What should be added to −5 to make the sum 0?

−5
0
5
6

Answers

Answer:

5

Step-by-step explanation:

0=x-5

solve for x

x=5

nnnnnnnnnn

You add positive 5.

-5+5=0

Solve: -3 + 7 -5 + (-10)​

Answers

Answer:

it is -11 because use the cauculator lol

Answer:

-11

Step-by-step explanation:

use a calculator bruh

Write the number in standard form. One hundred forty million, six hundred eighty-seven

Answers

Answer:

140,000,687

Step-by-step explanation:

the product of 9 and X​

Answers

The answer is 9x I believe

May somebody please help

Answers

Answer:

for the m = -1

b= -3

Type of slope= negative

Step-by-step explanation:

hope this helps

Rick has 3 pencils, they measures 9.7 inches, 6.25 inches and 8.5 inches respectively. What is the total length of the pencils altogether?

Answers

Answer:

24.45 inches altogether

Step-by-step explanation:

9.7 inches + 8.5 inches + 6.25 inches = 24.45 inches

Natalie just invited 100100100 guests to a party in her small house. The base of her house is a rectangle with dimensions 8\text{ m}8 m8, start text, space, m, end text by 16\text{ m}16 m16, start text, space, m, end text. It's a good thing she didn't invite the fire marshal to the party! Move points to create an outline of Natalie's house on the grid below.

Answers

Question attached

Answer and explanation:

Please find answer and explanation attached

Answer:

6 by 12

Step-by-step explanation: Khan Academy

Help please asap with this math

Answers

Answer:

30p + 5

You do destibutive property

(6p+1)(5)

6p * 5

1 * 5

=30p+5

ok so you first group them up and re write it
5 (6p+1)
then you multiply 5*6p which is 30 p
you mainly multiply and keep the variable(p)
then you multiply 5*1 which is 5
so the rewrites expression is 30p+5
hope that help good luck

con someone hwlp me please i can give you a brainle​

Answers

Answer:

For the first section, you write the algebraic expression or equation that goes with the statement.

For example, 9 more than the product of 51 and number "i" would translate into 51i+9. More and sum refers to addition, difference is subtraction, and quotient is division.

For the second section, you just simplify each of the expressions. when a number has ^, that means it has the square root, so 9^2 would be nine squared, which is 81.

For the third section, replace the c values for 3 and the d values for 5.

For the fourth section, determine whether or not each number is rational by writing the number as a fraction where both numerator and denominator are whole numbers. Pi is irrational as it can't be written as the fraction of 2 integers

For the last section, combine like terms and explain each step.

What is the median for the bar graph below?



2
2.5
6
3

Answers

Answer:

3

Step-by-step explanation:

The Median is the middle number. So, if there are 6 numbers, the middle or half of 6 is 3; therefore, your answer is 3

Sara puts together an online order at her favorite store. She orders shirts (s) for $15 each. She has to pay a $5 shipping fee as well
She wants to spend less than $50 total. How many shirts can Sara order?

Answers

she can get 3 shirts

explanation:
$50-$5 (shipping fee) = $45
$45/$15 (price of each shirt) = 3

Answer:

He can pay for 3 shirts. 3 shirts costs 45 dollars, and with 5 dollars of shiping,

that is 50 dollars.

In the figure below, Triangle A has been rotated about the origin. Which Triangle shows a 90 degree counterclockwise rotation?

Answers

Answer:

B

Step-by-step explanation:

Given a triangle JLM with vertices J(-4,3), L(-2,7), and M(2,7). What would the coordinates be if it was reflected across the line y=1?

Answers

Answer: M'(2, - 5), L'(-2, -5), j'(-4, - 1)

Step-by-step explanation:

When we do a reflection over a given line, the distance between all the points (measured perpendicularly to the line) does not change.

The line is y = 1.

Notice that a reflection over a line y = a (for any real value a) only changes the value of the variable y.

Let's reflect the points:

J(-4, 3)

The distance between 3 and 1 is:

D = 3 - 1 = 2.

Then the new value of y must also be at a distance 2 of the line y = 1

1 - 2 = 1

The new point is:

j'(-4, - 1)

L(-2, 7)

The distance between 7 and 1 is:

7 - 1 = 6.

The new value of y will be:

1 - 6 = -5

The new point is:

L'(-2, -5)

M(2,7)

Same as above, the new point will be:

M'(2, - 5)

Which expression is equivalent to 30(1/2x-2)+40(3/4y-4)?

Answers

Answer:

15x+30y-220

Step-by-step explanation:

Took the test!

Answer:

The person above is correct I got it right on edge quiz 2021

Step-by-step explanation:

!!!!!!!hope I helped lol

F(x) = 2x2 + 1 what is f(x) when x = 3 ?

Answers

Answer:

2x^2 +1   (x=3)

2(3)^2 +1

6^2 +1

36+1

37

What is the greatest common factor of 42 and 14?

Answers

It is 14 because if you do prime factorization:

14 = 2 x 7

42 = 2 x 3 x 7

They have the factors 2 and 7 in common.

2 x 7 = 14.

Answer:

The GCF is 14!

Step-by-step explanation: Okay Lets multiply to get 42, 14 x 1 is 14, 14 x 2 is 28, 14 x 3 is 42! We also know that this is the GCF because 42 and 14 can both be divided by 14!

Which expression is equivalent to √100 +4√10 +3 −8 √10?
1) −4√10 + 13
2) 10 − √10
3) 3 − 2√10
4) √10

Answers

Answer:

√100 +4√10 +3 −8 √10 =  −4√10 + 13 TRUE

Step-by-step explanation:

Simplify the following:

sqrt(100) + 4 sqrt(10) + 3 - 8 sqrt(10)

Hint: | Simplify radicals.

sqrt(100) = sqrt(10^2) = 10:

10 + 4 sqrt(10) + 3 - 8 sqrt(10)

Hint: | Evaluate 10 + 4 sqrt(10) + 3 - 8 sqrt(10).

10 + 4 sqrt(10) + 3 - 8 sqrt(10) = 13 - 4 sqrt(10):

Answer:  13 - 4 sqrt(10)

12 The price of a house is originally listed at $120,000. The owners are having a hard time selling it and decide to reduce the price to $110,400 What is the percentage decrease of the price of the house?​

Answers

Answer:

I think its 4% but I might be wrong so sorry if I am.

Original price of the house = $ 245000
Due to problems in selling, the price was reduced to = $203350
Hence, the reduced amount is =
=
Percentage decrease =

= =17%
Hence, the decrease percentage of the house is 17%.

Which table represents a linear function that has a slope of 5 and a y-intercept of 20?​

Answers

Answer:

Step-by-step explanation:

Note that if it has a y- intercept of 20, this means that when x = 0 , y = 20

Find the table which shows that :)

Other Questions
Please help ASAP!!!!! can i have 300mn + 500mn =_________________________________________________________________________________________________i need help Angry Southerners joined groups like the Red Shirts because What is true about photography subjects? A. Only people and landscapes make good photography subjects. B. Natural things make the best subjects. C. You should stick to photographing one type of subject. D. Almost anything can make a good photography subject. WHY must the same operation be performed on both sides of an equation? 6. Under the Articles of Confederation, the more people a state had, the more votes it got inCongress(7.5 Points)TrueFalse Please please please help me with geometry Solve for z. Remember to write your statements and your reasons.The reasons are very tricky for me because if we dont use the right terms we dont get credit Write an equation in slope-intercept form of the line4. with slope -6 that contains a point (8,-6) g. If you are going 70.0 mi/hr, how many miles do you travel in 0.681 hours! Is squash a annual, biennial, or perennial? Question 3dilation of 2K(-1,0), (1, 2), uo,-2)Which of the following sets of ordered pairs correctly identifyK', C' and U'?OK(-1/2.0), C (1/2, 1). U (0.-1)K(-2.0): C 12.4). U (2-4)OK[-2.0): C 12,2). U (0,-4)OK[-2.0): C (2.4). U (0-4 A portable electric saw is used to cut through a wooden log. What happens to the pitch of the sound from the saw as the blade cuts farther into the log? Why? Simplify: (1/3 - 2b)27...................................... Which of these locations on the map is a place where a person would be born a native U.S. citizen, even without either parent having U.S. citizenship? Which statement summarizes Wilberforces main argument about why the slave trade should be abolished?The slave trade is no longer necessary.The slave trade is not profitable.The slave trade is disorganized.The slave trade is evil. angle 4 and angle 5 are ??? angles will mark brainiest What is a common source of proteins within the body (not from food)? Problem #1: A group of 5 people went white water rafting. They spent a total of$1000. They made a deposit of $50 per person and paid $125 an hour to rent theequipment needed. How many hours did they spend white water rafting? IProblem #2: I will brainly And 5 star rateAsapp What is the line of reflection between pentagons PQRST and PQRST?A. x = 0B. y = xC. y = 0D. x = 1