Solve the system of equations using elimination

Solve The System Of Equations Using Elimination

Answers

Answer 1

Answer:

(1, 3).

Step-by-step explanation:

x + 2y = 7

3x - 2y = -3

Adding the 2 equations will eliminate y:

4x  = 4

x = 4/4

x = 1

Plug x = 1 into the first equation:

1 + 2y = 7

2y = 6

y = 3.


Related Questions

f(x) = 2x² + 4x - 5
g(x) = 6x3 – 2x2 + 3
Find (f – g)(x).
A. (f – g)(x) = –6x3 + 4x2 + 4x – 2
B. (f - g)(x) = 6x + 4x – 2
C. (f - g)(x) b= 6x? – 4x² - 4x + 8
D. (f - g)(x) = –6x2 + 4x2 + 4x – 8

Answers

The required difference in the expression (f – g)(x) is - 6x³+ 4x² + 4x - 8

Given the following functions

f(x) = 2x² + 4x - 5

g(x) = 6x³ – 2x² + 3

In order to get the required function (f-g)(x), we will have to take the difference of the function as shown:

(f – g)(x) = f(x) - g(x)

Substitute the given parameters into the expression

(f – g)(x) = 2x² + 4x - 5 - (6x³ – 2x² + 3)

Expand

(f – g)(x) = 2x² + 4x - 5 - 6x³ + 2x² - 3

Collect the like terms

(f – g)(x) = 2x²+2x²- 6x³ + 4x -5 -3

(f – g)(x) = - 6x³+ 4x² + 4x -5 -3

(f – g)(x) =  - 6x³+ 4x² + 4x - 8

Hence the required difference in the expression (f – g)(x) is - 6x³+ 4x² + 4x - 8

Learn more here: https://brainly.com/question/17431959

180% is equivalent to what decimal value

Answers

Answer:

The solution is 1,8

Step-by-step explanation:

[tex] \sf 180 \% \\ = \sf \frac{180}{100} \\ = \sf 1.8[/tex]

solve the system of equations by using substitution
y=2x-2
2x+y=10​

Answers

2x+1(2x-2)=10
2x+2x-2=10
4x-2=10
+2 +2
4x=8
x=2
y=2(2)-2
Y=2

Pamela's age is two times Jiri's age. The sum of their ages is 42. What is Jiri's age?

Answers

Answer: jiri is 14

Step-by-step explanation:

14x2 = 28

28+14=42

2y = x - 12, solve for X

Answers

2y = x - 12

2y+12 = x

x = 2y + 12
or

x = 2(y+6)

4 cm
4 cm
Find the lateral surface area of the cylinder. Round your answer to the nearest hundredth.

Answers

Answer:

For cylinder TSA this is simple equation   TSA -  TBA = LSA

total surface area subtract the total base area and we get the lateral.

To find base it is 2pi r^2

so 2pi x r x h - 2 pi x r^2 = lateral surface area

Step-by-step explanation:

step by steppleaseee
Systems of Equations
x+2y=6
5x+3y=2

Answers

Answer:

Step-by-step explanation:

-5x - 10y = -30

5x + 3y = 2

-7y = -28

y = 4

x + 8 = 6

x = -2

(-2, 4)

whats 8 x 2 40 points

Answers

Answer:

Error hehehheheheh

Step-by-step explanation:

crown me please hehehhhe hahahahahh hohohoohoho points more more more more points

what is equifenlnt to 35000 cm in kelomiters

Answers

Answer:

.35 kilometers

Step-by-step explanation:

Answer:

.35 kilometers

Step-by-step explanation:

PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Someone else has answered this look it up on brainly!!!

I need help with this

look at picture

Complementary angles

Answers

Answer:

x=43

Step-by-step explanation:

complementary angles will add up to equal 90 so we set up an equation to solve x

12+x+25=90

step 1 combine like terms

12+25=37 so now its

37+x=90

step 2 we subtract each side by 37

90-37=43

x=43

hope this helps and have a great day :)

Answer:

53°

Step-by-step explanation:

Complementary angle = 90°

So, 12° + (x+25°) = 90°

Subtract 12 from both sides

x+25°=78°

Subtract 25 from both sides

x=53°

3t - 12 ≤ - 9

pls see attachment

Answers

Answer:

D : t ≤ 1

Step-by-step explanation:

3t - 12 ≤ - 9

3t - 12 + 12 ≤ - 9 + 12

3t  ≤ 3

3t/3 ≤ 3/3

t ≤ 1

For (≤ or <) Arrow points to the negative side

if the symbol is (≥ or ≤) then you fill in the dot

if the symbol is (> or <) then you do not fill in the dot

Help me people u r my only hope!
Choose all of the values that are equivalent to -(1/3)
A. -1/3.
B. 1/-3
C. -1/-3
D. 1/3
E. -(-1/3)

Answers

Answer:

D)1/3 ?

Step-by-step explanation:

Maybe 1/3

Do some research, I guess it's D).

I hope that helps (:

1. The entire fraction is negative if the numerator or denominator are negative.

if both parts of the fraction were negative, the entire fraction would be positive (- / - = +)

2. Of course, although most teachers ask you to put the negative sign in the fraction as a whole (before the fraction line) or in the numerator. never leave a fraction with two signs. in this case, if it has two signs and they are different, the whole fraction is NEGATIVE

3) No. the whole fraction is POSITIVE only if both the numerator and the denominator have the same sign, + + or - -

i really need helppppp!

Answers

Answer:

1) 34.5°

2) 0.25(180-B)=D

Step-by-step explanation:

180-42=138

1/2x138=69

1/2x69=34.5

0.25(180-B)=D

1/4 + 2/3= then times that by two

Answers

Answer

1 7/12

Step-by-step explanation:

1 7/12
step by step explanation:

Merei and Jona buy the $2000 Super PC special package desktop computer. What is the total amount they will pay? Question response area Select one option $530 $1560 $2000 $2060 $2530

Answers

Answer:

$2000

Step-by-step explanation:

Given data

We are given that the price of the super PC is $2000

Since they are buying only one of the super PC they will have to pay

$2000

Hence option C is the correct answer

Solve using the order of operations (4 x 15) - 3

Answers

Answer:

57

Step-by-step explanation:

Answer: 57

Step-by-step explanation:

1. Calculate what's in the parentheses first

(4 * 15) = 60

(60) - 3 = ?

2. Exponents (Powers, Roots) before you Multiply, Divide, Add or Subtract

Not applicable for this problem.

3. Multiply or Divide before you Add or Subtract

Not applicable for this problem.

4. For anything else left, just go from left to right

60 - 3 = 57

If you want to remember the shortcut; PEMDAS

P  - Parentheses first

E  - Exponents (Powers and Square Roots, etc.)

MD  - Multiplication and Division (left-to-right)

AS  - Addition and Subtraction (left-to-right)

Remember that:

Divide and Multiply rank equally (and go left to right).

Add and Subtract rank equally (and go left to right)

If the area of a rectangle is 4.5 square cm and one side is 1.5 cm long. How long is the other side

Answers

Answer:

Step-by-step explanation:

1.5x = 4.5

x = 3 cm

I hope the answer in the above picture will helps you.

write a decimal number
4tenths 3 hundredths 7 thousands​

Answers

The answer is 0.437

Have a great day!

Answer:

4.37

Step-by-step explanation:

what is the difference of (5+3i) and (2+9i)?

Answers


Answer:

3+12i

Step-by-step explanation:

The difference of 5+3i and 2 + 1999 can be calculated as follows

= 5+3i - 2+9i

Collect the like terms

= 5-2+3i+9i
= 3+12i

the difference of 5+3i and 2+9i is 3+12i

SOMEONE PLEASE HELP WILL MARK BRAINLIEST PLEASE EXPLAIN

Answers

Answer:

a. (x+5)^2 = 49

b. (x+7)^2 = (x+1)^2

Step-by-step explanation:

So the term "a number" is always going to be x. input x into the sentences. "X plus five, then squared, is forty-nine". when they do "is __", that means equal to. In the second question, seven more than x is x + 7 (the two numbers are interchangeable here). Equivalent also means equal. hope this helped :)

Answer:

a: x + 5^2 = 49

b: 7>x^2=(put three lines not two) (1>x)^2

Step-by-step explanation:

Please help ! Picture Included.

Answers

The pic is blank lol

(25 POINTS) 10. Find the sum of the arithmetic sequence. 5, 7, 9, 11, ..., 23​

Answers

Answer:

Sum = 140

Step-by-step explanation:

We find all the terms, we know that every consecutive term, we add 2 until we reach 23:

Sum = 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

Sum = 140

(please help!! )
The diagonals of parallelogram ABCD intersect at P. Select all the statements that must be true.
A. AP¯¯¯¯¯¯ ≅ CP¯¯¯¯¯¯
B. BC¯¯¯¯¯¯ ≅ AD¯¯¯¯¯¯
C. m∠ABC=90
D. ∠CAD ≅ ∠ACB
E. ∠BPC ≅ ∠APD

Answers

Answer:

It's A, B, D, E I'm pretty sure

Step-by-step explanation:

The statements that will be true about parallelogram ABCD are: A, B, D, and E.

What are the Properties of a Parallelogram?Diagonals of a parallelogram bisect each other into congruent segments.Opposite angles and sides of a parallelogram are always congruent.Alternate interior angles are always congruent in measure.

Thus, the following would be true of parallelogram ABCD:

AP ≅ CP (congruent segment's of a bisected diagonal)BC ≅  AD (congruent opposite sides)∠CAD ≅ ∠ACB (congruent angles)∠BPC ≅ ∠APD (congruent angles)

Therefore, the statements that will be true about parallelogram ABCD are: A, B, D, and E.

Learn more about parallelogram on:

https://brainly.com/question/3050890

Determine the verticle asymptote and horizontal asymptote of x^2-25/2x^+13x+15?

Answers

Answer:

what are you doing here honey and what is this gonna be about me in a hurry for the first two


Solve. 3(x +4) = 36

Answers

3(x+4)=36

What you need to do is divide both sides of the equation by 3 in the first part

x+4=12

Now you move the constant towards the right side and change the sign

x=12-4

Subtract the numbers to find the answer

x=8, therefore to solve 3(x+4)=36 it will give you x=8 as your answer. Hope this helps ^^

A box contains four equal-sized cards labeled 1, 3, 5, and 7. Tim will select one card from the box. What is the Probability that Tim will select a card labeled with a number less than 6? Give the probability in any one of the three ways.

Answers

Answer:

3/4

Step-by-step explanation:

There are 4 total outcomes - 1,3,5 and 7.

The outcomes which are less than 6 are 1, 3 and 5. So 3/4 will be < 6.

i will give you a brainliest if our answer are correct

Answers

Answer:

Naomi and Pierre

Step-by-step explanation:

Answer:

I don't no

Step-by-step explanation:

sorry friend

Negative five-fourths times a number and six is less than twelve.​

Answers

Answer:

-5/4x +6 < 12

Step-by-step explanation:

-5/4x+6 v12 have a great day

Find the area of each figure in square units​

Answers

I think it’s 25 square units
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