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

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 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 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!

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

May somebody please help

Answers

Answer:

for the m = -1

b= -3

Type of slope= negative

Step-by-step explanation:

hope this helps

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

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.

Can someone help me please

Answers

Answer:

The answer is A.

Step-by-step explanation:

2x2x2= 8 but one of them fell off.

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.

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 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!

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

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

Answers

Answer:

140,000,687

Step-by-step explanation:

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

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:

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

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

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)

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

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)

What is the square root of two?

Answers

Answer:

4

Step-by-step explanation:

Answer:1.41421356237

Step-by-step explanation:

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

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 :)

the product of 9 and X​

Answers

The answer is 9x I believe

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

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

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

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

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!

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

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