Mathematics High School

Solve the system of equations by elimination. Show all work neatly on your work page. Checking your answer is wise. :)

6x + 3y = -12

-6x - 2y = 4

Answers

Answer 1

Answer:

x=2

y=-8

Step-by-step explanation:

6x+3y=-12

-6x-2y=4

3y=-12-6x

y=(-12-6x)/3

y=-4-2x

substitute y

-6x-2(-4-2x)=4

-6x+8+4x=4

-2x=-4

x=2

6(2)+3y=-12

12+3y=-12

3y=-24

y=-8

check:

6(2)+3(-8)=-12

12-24=-12

-6(2)-2(-8)=4

-12=16=4

Related Questions

AABC is a translation of AABC. What is the length of AC'?

A 3 units
B. 6 units
C. 14 units
D. 5 units

Answers

B.) 6?....
This seems too easy for it to be correct but I think it is B.

Answer: It is B.6 Units

Step-by-step explanation: A,C The number in-between.

Decrease £16855.21 by 13.5%
Give your answer rounded to 2DP

Answers

Answer yes

Step-by-step explanation:

79+9

79+9 and you will find ur answer did this before hope this helps

3x-5 when x=3 work and answer

Answers

Answer:

when x =3 the answer is 4

Step-by-step explanation:

3(3)-5

3x3=9

9-5=4

Step-by-step explanation:

3×3=9

9+-5=4

I believe it's 4

c/- 4 = 16
please help

Answers

C=-64


Multiple the equation by -4

The circumference of the circle was 12π , what is the radius

Answers

Answer:

Refer to the attachmenT

Have a good day Ahead:)

Answer:

6

Step-by-step explanation:

Because circumference is 2pir, the 12 is multiplying the radius by 2. To get the radius divide 12 by 2 to equal 6.

The Puma sneakers cost $80, you have a 30% coupon and the tax rate is 4.35%. What is the final price of the sneakers?

Answers

Answer:

$31.31

Step-by-step explanation:

math,,,,,, , ,,,

Please help me out I am doing this for math and has no clue what to do

Answers

from the three options i can see, i would pick option B.

What is the answer for. 49x^2-25y

Answers

are you sure those are all numbers?

Help me and please be sure of ur answer.​

Answers

Answer:

1. Evan

2. Stacey

Step-by-step explanation:

The equation m=40g gives the distance in miles, m, that a car can travel using g gallons of gas.
B. Write an equation that represents the inverse function: the gallons of gas as a function of distance in miles.
Question: How can I write an equation that represents the Inverse function of this problem?

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the function.

to get the inverse of the function,

let's consider that y is the function of m

hence, y = m

now, we know that m = 40g

hence, relatively, y = 40g

but to get inverse, we need gallon of gas as function of distance, hence

g = y/40,

since we know that y = m, replace it

hence the new inverse function is,

====> g = y/40

In the figure MN is a midsegment of JKL. Find the value of X

Answers

Answer:

x = 9

Step-by-step explanation:

Here, we want to find the value of x

To do this, we are going to use the similar triangles principle

When two triangles are similar, the ratio of their corresponding sides are the same

The two similar triangles we shall be using are;

LMN and LJK

Thus, we have it that;

x/8.5 = x+ 9/17

17x = 8.5(x + 9)

17x = 8.5x + 76.5

17x - 8.5x = 76.5

8.5x = 76.5

x = 76.5/8.5

x = 9

What is the solution to this equation?
-16x= 80
O A. x= -96
O B. x= 96
O C. x = 5
O D. x= -5

Answers

D
Divide both sides by -16 to isolate the x.
80/-16= -5
D, you have to divide -16x by itself and 80. 2 negatives make a positive and one positive and one negative make a negative

help please!!
An earring in the shape of a kite is designed on a rectangular grid with
squares that measure 1 cm by 1 cm. A piece shaped like a rhombus within
the kite will be reserved for the copper part of the earring. Use the grid to
identify the area of the space reserved for copper.

Answers

Answer:

A = 48 cm^2

Step-by-step explanation:

I hope this helps

what is 2.5% as a feaction and a decimal​

Answers

the answer is 2 1/2


Can I get help on this math problem makes makes no sense

Answers

(2,-1) The intersecting point is the point where the two lines meet.



ABCD is a parallelogram.
AD = 12 cm.
DC = 9 cm.
The perpendicular distance of
from CD is 8 cm.
What is the perpendicular distance of AD from BC?

Answers

9514 1404 393

Answer:

  6 cm

Step-by-step explanation:

The area of the parallelogram is the same, either way you figure it.

  A = bh

  A = CD(length ⊥ to CD)

  A = (9 cm)(8 cm) = 72 cm²

__

  A = AD(length ⊥ AD)

  72 cm² = (12 cm)(length ⊥ AD)

  (length ⊥ AD) = (72 cm²)/(12 cm) = 6 cm

The perpendicular distance of AD from BC is 6 cm.

Not asking a question, but i just wanted to thank every single one of you answering questions, you've helped me so much.

Answers

Answer:

I know that many people have helped u and I appreciate that you are thanking them.

Step-by-step explanation: Happy early Valentine’s Day!

Answer:

yw

Step-by-step explanation:

Please help me someone ?

Answers

Use parentheses to represent infinity or negative infinity, since positive and negative infinity are not numbers in the usual sense of the word and, therefore, cannot be “equaled.” A few examples of an interval, or a set of numbers in which a solution falls, are [−2,6) , or all numbers between −2 and 6 , including −2 , ...

- To make homemade window cleaner, Shivani combines vinegar and water in the ratio of 1:7 by volume. How
many millilitres of vinegar should she add to make 45 mL of cleaner?

Answers


V:W
1:7
1+7=8
1/8*45=5.625 ml of vinegar

can anyone solve this?
6x^3 + 4x^2 - 10x

Answers

The answer is,

[tex]2x(3x + 5)(x - 1)[/tex]

sorry if wrong.

When 3 numbers are multiplied together the answer is 30 when the same 3 numbers are added together, the answer is 0 what are the three numbers

Answers

Answer:

6,5,1 ?

Step-by-step explanation:

help me please!!!!!!

Answers

Yo imma help u out use Socratic app it’s the best

Select all the situations that can be represented by an exponential function.
1. Jim deposits $1,000 in an account that doubles in value every 7 years.
2. Brian deposits $30 in a savings account. Then he deposits $2 each month for the next 9 months.
3. Leon runs a mile in 8 minutes. Then he runs a mile each day for the next 4 days, reducing his time by 1.5% each day.
4. Cynthia runs a mile in 9 minutes. Then she runs a mile each day for the next 4 days, reducing her time by 6 seconds each day.
5. Marie deposits $30 in a savings account. Then she makes a deposit each month for the next 9 months, putting in $2 more with each deposit. Please answer with an actual question as fast as you can.

Answers

Answer:

m and ms

Step-by-step explanation:

Find the solution to the system of equations. Write the solution as an ordered pair. 3x+2y=-7 and 5x-3y=20

Answers

Answer:

3x+2y=-7

5x-3y=20

8x-y=13

8x-13=0

y-13=0

8x=13

y=13

8x/8=13/8

y=13

x=13/8

y=13

Find the geometric mean of the numbers. If necessary, give the answer in simplest radical form.
7 and 28

Answers

Answer:

14 = x

Step-by-step explanation:


Help graphing linear equations in standard form

Answers

Answer:

2x+3y=-6 -2x. +2x 3y=-6+2x ÷3. ÷3 y=-2+2/3xGraphing y=2/3x-2(3,0) and (0,-2)

Determine the period of the function graphed at the right.

Answers

Answer:

Step-by-step explanation:

-1.14285714286 in simplest form

Answers

Answer: to the nearest tenth its -1.1

to the nearest hundredth its -1.14

to the nearest thousandth its -1.143

as a percentage its −114.28571428%

-1.1,-1.14,-1.143 is the simplest form of -1.14285714286 in nearest 1oth, 100th and 1000th respectively.

The digit in the smallest location is unaffected if it is less than 5 in number. Rounding down is the process of reducing a number to zero after a certain number of digits. The digit in the smallest location is added with +1 if it is bigger than or equal to 5.

-1.14285714286 is simplified by rounding off

1. It can be rounded to the nearest tenth as -1.1

2. It can be rounded to the nearest hundredth as -1.14

3.  It can be rounded to the nearest thousand as -1.143

Thus, -1.1,-1.14,-1.143 is the simplest form of -1.14285714286

Learn more about round off, here:

https://brainly.com/question/31754034

#SPJ6

what is the area formula for trapezoid

Answers

Answer:A

=

a

+

b

2

h

Step-by-step explanation:

Find the value of x.

Answers

Answer:

5

Step-by-step explanation:

-------------------------

Answer:

a

Step-by-step explanation:

48=7x+13

step 1 subtract each side by 13

35=7x

step 2 divide each side by 7

x=5

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