Mathematics High School


Slove the system
Of Linear Eqitions by
Elimination
3x-y=0
2x+y=-10

Answers

Answer 1

Answer:

(-2, -6)

Step-by-step explanation:

Given the simultaneous equation

3x-y=0 ... 1

2x+y=-10 ... 2

Add both equations to eliminate y

3x + 2x = 0 - 10

5x = -10

x = -10/5

x = -2

Substitute x = -2 into 1

3(-2)- y = 0

-6 - y = 0

-y = 0+ 6

-y = 6

y = -6

Hence the coordinate (x, y) is (-2, -6)

Related Questions

-7(6a - 3) - 2a = -27 + 4a

Answers

the letter a is 1
good luck!!!!!!!

PLEASE ANSWER COMPLETE QUESTION. WILL MARK BRAINLIEST FOR BEST ANSWER. QUESTION IS ATTACHED.

Answers

9514 1404 393

Explanation:

A linear system of two equations in two variables will be a dependent system. This means both equations reduce to the same equation. The equations will be different only until they are reduced to the same form.

Here is one possible set of equations. The first is in slope-intercept form. The second is in point-slope form.

y = 3x +1y -7 = 3(x -2)

If we subtract the first equation from the second, we get ...

  (y -7) -(y) = (3(x -2)) -(3x +1)

  -7 = 3x -6 -3x -1 . . . . . eliminates y

  -7 = -7 . . . . . . . . . true for all values of x

There are an infinite number of solutions.

Chapter 2 Test
1) Choose the option that lists the values in order from least to greatest:
0.55
3
3
0.52
1
7
1
a) 3,0.52 ,0.55,
b) Ķ, 0.55 ,0.52,
C) 0.52, Ž, 0.55 , }
d) 0.52, 0.55,,
317
2) Choose the option(s) that are equal in value Marko

Answers

Answer:

C

Step-by-step explanation:

The correct answer is option C) 0.52, Z, 0.55 , }

a triangle can be drawn with angle measure of 60 degrees, 60 degrees, and 70 degrees

true or false?

Answers

Answer:

False. All triangles must have a total of 180°. 60° + 60° + 70° = 190°.

solve 35% of 84 using the mental method

Answers

Answer:

29 approximately

Step-by-step explanation:

You want to estimate 35% of 84.  35% is roughly equivalent to 1/3, so multiply 84 by 1/3 (or, equivalently, divide 84 by 3), obtaining 28.    Use a calculator to find 0.35(84):  29.4.     This 28 is a fairly good estimate of 35% of 84 which is 29.4.

HELP what is the coefficient of 14x?

multiplication
14
14x
x

Answers

Coefficient of 14x is 14

Coefficientis the number in front of the letter. For example, coeffient of 2b is 2. When there is no number in front of the letter the coefficient is 1.

Helpppppp me pleaseeee

Answers

Answer:

3. C

4. D

Step-by-step explanation:

1. add flat fee to each song.

2. Multiply 0.15 by 25 then add 10

first is C
second is D

Marilyn and Frank each save $25 per month. Their savings are $3x and $2x respectively. What amount will be the sum of their savings 5 months from now?

Answers

Answer:yutu

gdffg

Step-by-step explanation:

uytyuytuyuyu dfgdgdg

Answer: the answer is b on the forum

Step-by-step explanation:

I'm in need of assistance-

Answers

Answer:

q

Step-by-step explanation:

The formula for compound interest is A=P(1+)"where n is the number of times interest is compounded per year. Jamal invests $3000 in an account that pays annual interest at a rate of 5%, compounded monthly. How much money will be in the account after 6 years? 3 of 5 QUESTIONS O A=3000(1+.05)=$4020.29 А O A=3000(1+0.05)=3153.16 O A =300017 3:35:12283542.24 O A =3000+ 0.05)2 =54047.05​

Answers

Answer:

$4047.05

Step-by-step explanation:

A = 3000[1 + (.05/12)]^12·6

A = 3000(1.00417)^72

A = 4047.05

Answer: 4047.053232

Equation: y=3000(1.0041)[to the power of 72]

A large chocolate bunny costs $2.07. Chris only has $1.12. How much more money does Chris need in order to buy the bunny?

Answers

Answer

0.95 more cents

Step-by-step explanation:

2.07-1.12=0.95

What are the measures of the other three angles formed by the intersection?

Answers

angle 2 is 132 since it’s a vertical angle... i cant help you with the other 2 i’m sorry!!
Could you resend the picture in the comments or maybe even write it out?
My screen is very blurry.

Which of the values in the set {3,4,5,6} is a solution to the equation 4x + 2 = 22?

A) 3

B)4

C)5

D)6

Answers

Answer:
C
Explanation:
Plug in 5

4x+2=22

4(5)+2=22

20+2=22

3. Jessie is looking for the volume of the cone
below, and she is using the formula V = (1/3)Bh.
Which of the following is the value of “B”?

Answers

Answer:

A

Step-by-step explanation:

The base is the circle.

To find the area of the circle, use pi*r^2

pi = 3.14

r = 6

Area = 3.14 * 6^2Area = 3.14 * 36Area = 113.04

Answer:

C. 414.48

Step-by-step explanation:

1/3 x 3.14 x 6² x 11 = 4.14.48

Find the equation of the line that is parallel to the line y=-3x-7 and passes through the point (1,2). Write an equation in slop intercept form

Answers

Answer:

y=-3x+5

Step-by-step explanation:

y=-3x-7

slope is -3

parallel lines have the same steepness, they have the same slope.  The slopes are equal.

y-y1=m(x-x1)

y-2=-3(x-1)

y-2=-3x+3

y=-3x+3+2

y=-3x+5

solve em for me please

Answers

Take another pic thats clearer

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer:c. 18j+10p=95.42

11j+16p=53.33

Step-by-step explanation:

j stands for journals and p stands for pencils and what goes after the = is the amount payed

PLEASE ANSWER FAST!!
Which equation is in standard form?

a) 3x - 4y - 2 = 0

b) y = -2x - 3

c) 3x + 7y = 4

d) y = 2

Answers

Answer:

c

Step-by-step explanation:

The answer of this question is c

A rectangular prism is filled with 356 cubes with an edge length of 1/4 what is the volume of this prism

Answers

Answer: volume = 5.5625 cubic units.

Step-by-step explanation:

A rectangular prism is filled with 356 cubes, then the volume of the prism will be equal to 356 times the volume of a single cube.

We know that for a cube with side length L, the volume is:

V = L^3

And we know that these small cubes have an edge length of 1/4 units.

Then the volume of each small cube is:

V = (1/4)^3 cubic units

V = (1/64) cubic units

And the volume of the prism will be 356 times that, then the volume of the prism is:

volume = 356*(1/64) cubic units

volume = 5.5625 cubic units.

someone please help me ​please

Answers

Answer:

D

Step-by-step explanation:

I tried all the other equations by plugging in numbers and disproving their accuracy. D was the only one that worked.

Mia bought 2 adult tickets and 4 kid's tickets. Each adult ticket cost $13.50 and each kid ticket cost $10.25. How much did Mia spend on tickets

Answers

Answer:

Mia spent 68 dollars.

Step-by-step explanation:

The equation would be 2(13.50) + 4(10.25) = x

Solving for the first part, you get 27 for adult tickets and 41 for the children tickets. When you add the two values, you get 68.

she spent $68, $27 on the adult tickets and $41 on the kids tickets

Write a real word problem that involves dividing a decimal by a whole number

Answers

There is 75% of a pizza and there are 3 siblings who want to eat it for lunch. They divide what they have of the pizza evenly among themselves. In terms of a whole pizza, what percent did each sibling get.

This question would mean dividing 75% or .75 by 3 which would mean each person got 25% or .25 of what would be a whole pizza.
So while each person would get .33 of the current sized pizza (.75) in terms of a whole pizza it would be .25

I hope this makes sense! Sorry if I over explained it.

Hey! Can someone help me?

Answers

Answer:

Step-by-step explanation:

there are 4 sixes soo

[tex]6^{4}[/tex]

Answer:

[tex] {6}^{4} [/tex]

-have a nice day

what is seven squared as an exponetial expression

Answers

Answer:

7^2

Step-by-step explanation:

4x^2 - 5x when x = 3


^ is squared

Answers

Answer:

-5

Step-by-step explanation:

4(3)^2 - 5(3) = 21

plug in 3 for the x

Show work A circular pond has a circumference of about C feet. The diameter of the pond is 7 feet. Which expression best represents the value of pi?

Answers

Answer: 7

Step-by-step explanation:

7x1x1=7/1=7

Determine whether the ratios are equivalent.

3 : 10 and 9 : 25

Please Help!!

Answers

Answer:

They aren't

Step-by-step explanation:

9/25 / 3= 3/8.3

3/10 x 3 = 9/30

none of those equal to each other

Solve for

Help me please

Answers

Answer:

x = 7

Step-by-step explanation:

tan 30 = x/7√3

tan 30 = 0.5774

x = 0.5774(7√3)

x = 7

Are (99 – 11 + 10g) - (12 - 119 + 13) and -3(-10g + 12) equivalent expressions? Explain.

Answers

Answer:

)99-11+10g -12+119 -13= 182+10g

)30g-36

Step-by-step explanation:

The Vincent family played a game of basketball. For each game, Ben kept a record of the number of 2-point baskets he attempted, and the number of 3-point baskets he attempted. After the family played several games, he made a scatter plot of the data using the 2-point shots as the x-variable and the 3-point shots as the y-variable. The scatter plot has a line of best fit with the equation y=1.2x+3.1

Answers

Answer:

your answer is The y-intercept represents how many 3-point shots Ben will try to make if he attempts 0 2-point shots.

Step-by-step explanation:

Answer:The y-intercept represents how many 3-point shots Ben will try to make if he attempts 0 2-point shots.

Step-by-step explanation:

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