Mathematics High School

Can someone help me PLZ! I keep posting the same question and no ones helping me :((((((((((((

Find the solution to the system of equations below. Start by adding the equations. Write your answer as an ordered pair.

-2x + 2y = -8
2x + y = 5

Answers

Answer 1

Answer:

-2x + 2y = -8 is x=y+4

2x + y = 5 is x= −1/ 2 y+ 5/ 2

Step-by-step explanation:

Answer 2

Answer:

3x+2y=-3

Step-by-step explanation:

Slope = -3.000/2.000 = -1.500

x-intercept = -3/3 = -1

y-intercept = -3/2 = -1.50000

2x-3y=-15

Slope = 1.333/2.000 = 0.667

x-intercept = -15/2 = -7.50000

y-intercept = 15/3 = 5

If this was helpful then please mark brainliest. Have a great day!

Related Questions

Find the slope.
Find the y-intercept
Write the equation (y=mx+b)

At Philip’s Phones you can get a new cell phone plan for $45 a month plus $30 activation fee.

Answers

y=45x+30

x=months
y= fee

9514 1404 393

Answer:

slope: 45y-intercept: 30equation: y = 45x + 30

Step-by-step explanation:

The slope is the cost per month. (A slope is often expressed as a ratio: dollars per month, in this case.) The slope is 45.

The y-intercept is the value that obtains when the number of months (in this case) is zero. It is the activation fee, 30. The y-intercept is 30.

The equation in slope-intercept form is ...

y = mx + b . . . . . where m is the slope and b is the y-intercept

Using the above numbers, the equation is ...

y = 45x + 30

The Weight On Earth Compared To Some Rando Planet... pls help

Answers

Answer:

if your talking about the earth i dont know because no one have ever compared some random planet and earths weight

Step-by-step explanation:

That’s because the planets weigh different amounts, and therefore the force of gravity is different from planet to planet. For example, if you weigh 100 pounds on Earth, you would weigh only 38 pounds on Mercury. That’s because Mercury weighs less than Earth, and therefore its gravity would pull less on your body.

HURRY
An angle measures 47°. What are the measures of the angle’s complement and supplement? A. complement, 43°; supplement, 133° B. complement, 133°; supplement, 43° C. complement, 53°; supplement, 143° D. complement, 143°; supplement, 53°

Answers

The angle that is complementary to 47° is 43°

The supplementary angle of 47 degrees is 133 degrees

Answer:

A.) complement, 43°; supplement, 133°

Step-by-step explanation:

A compliment angle is any angle(s) that adds up to 90°

A supplement angle is any angle(s) that adds up to 180°

For compliment:

90 - 47 = 43

For supplement:

180 47 = 133

Therefore, the answer would be A.

-kiniwih426

check whether the following equations are consistent or inconsistent by comparing ratios.
1) 2x+3=5.
2) 4x+6y=15

Answers

Answer:

yes the required equation is consistent

Someone please help with 13 and 14

Answers

Answer:

Step-by-step explanation:

13 is 76 because it’s vertical to UYV

14 is 40 because it’s vertical to TYU

Were your total results for the ten rounds close to the theoretical probability?

Answers

Answer:

yes?

Step-by-step explanation:

im sorry im confused as to what your asking? will you type it in the comments so i could try and answer correctly!

hmmm im not sure about this

which of the following is the correct factorization of the trinomial below -7x^2+5x+12

Answers

The factored form would be (-7x+12)(x+1)

It’s always good to know the several ways to solve these problems, but one of the easiest and fastest would be the box method.

The box method involves you finding you a, b, and c values in a quadratic equation. It goes as follows, Ax^2+bx+c. When doing the box method, you multiply only your A and c. In this case -7*12 which gives you -84. Next you just find you b value (which is 5).

Now comes the trick part, you need to find the factors of -84 that ADD UP to equal 5. Therefore we just find the factors of 84 by listing them (find them for 84 then determine with the negative later). So we have 2, 42/ 3,28/ 4/21/ 6,14 / and 7,12. It becomes easier to find your factor, but 7 and 12 can equal to 5 in this condition due to 84 being negative, therefore one of the factors will be negative. By making 7 negative we can make 12+-7 equal to our b value of 5.

Now that we have the factors, we put them into fractions. We put them in the form that a would be on top and the factor would be on the bottom. Therefore a/(factor). In this case is would be -7/12 and -7/-7. With these fractions, we then simplify as much as we can, -7/12 cannot be simplified so it stays the same, but -7/-7 can be simplified to 1/1.

These fractions then become you FACTORS of your quadratic equation, in which case the a value in the fraction adds x to it, therefore it would be -7x+12 and x+1. The correct would would be (-7x+12)(x+1).

Answer:

-1(7x-12)(x+1)

Step-by-step explanation:

Ape s* x

2) Dan is playing a game that involves the spinners shown below.*
10 points
Spinner 1
Spinner 2
Spinner 3
6
2
Greon Red
Blue Yellow
5
3
F
Which durt shows all of die possible combinations of an even number on Spinner 1,
Red or Blue on Spinner 2, and a B on Spinner 3?
A
с
Spinner 1 Spinner 2 Spinner 3
2 Red B
4
Red
B
6 Red B
2 Blu B
Blue B
6 Blue B
Spinner 1 Spinner 2 Spinner 3
2
Rod B
2 Red B
Red
4 Blue
B
6 Blue B
6 Blue B
B
D
CC
Spinner 1 Spinner 2 Spinner 3
1
Red B
2. Blue B
3 Red B
Blue B
5 Rod
B
6
Blue B
Spinner 1 Spinner 2 Spinner 3
2 Red
4 Red
B
6 Red А
2 Blue B
Blue А
6
Blue B

Answers

Answer:

1 spanner 2 greoun red 3 blue 4 .... 6 blue

Please help ?? I don’t remember how to do this

Answers

Answer:

i hope it help you

Step-by-step explanation:

1) x not equal 3

2) x not equal 5 and greater than or equal 3

3) x greater than or equal 3

4) x not equal 5

Can someone help me please, ASAP.

Answers

11/24
Change 1/3 to 8/24 (Because of common factor)
Change 1/8 to 3/24
Add them together
You get 11/24

Help me someone !!!!

Answers

Answer: 1 and 2 centimeters become 10 and 20 millimeters, while 30 and 80 millimeters become 3 and 8 centimeters.

Step-by-step explanation:

If you have more questions like this you should try using a conversion chart/calculator!

Answer:

10 and 20 and The test arendifferent

6 2/8 + 4 3/4 whats the answer

Answers

Answer:

Step-by-step explanation:

6 2/8 = 6 1/4

6 1/4 + 4 3/4 = 10 4/4

Answer:

Step-by-step explanation:

add the whole numbers and fractional parts of the mixed numbers separately

(6+4) +(2/8+3/4)

10+(2/8+3/4)

10+1

11 is the answer

50 points pls answer
How many square yards in a 120 yd. by 50 yd. football field?

Answers

Answer:

666.67

Step-by-step explanation:

Multiply 120x50 and then divide that answer by 9 since we are calculating the square yards

Can someone help me understand this?

Answers

The radius will be the number given divided by 2

Answer:

You have to divide the number in the middle by 2 to find the answer

Pleaaasee need correct answer! Brainliest(:

Answers

Answer:

Choice 4 is the correct answer

Answer:

2 the transitive property :))))))))))))

Step-by-step explanation:

someone please help and explain asap will mark brainliest!!

Answers

Answer:

x-1=8

y+1= 28

Step-by-step explanation:

Hope this helps

Please mark brainliest

write the equation of a line that has a slope of 3x - 4y = 12 and passes through the point (8, 8)

Answers

first of all we have to find the slope

3x - 4y = 12

-4y = 12 - 3x

y = -3 + ³/₄ x

y = ³/₄x - 3

so the slope is ³/₄

now the equation is :

y-y₁ = m (x-x₁)

y-8 = ³/₄ (x-8)

y-8 = ³/₄ x - 6

y = ³/₄ x -6 + 8

y = ³/₄x + 2

Dave plays drums and at his maximum tempo he can play 540 beats in 3 minutes. Lanise also plays drums and at his maximum tempo he can play 900 beats in 5 minutes. Who can play more beats per minute?

Answers

Answer: the unit rate is the same

Step-by-step explanation:

The diagram shows a square.
(6x - 1) cm
Find the length of the side of the square.
Your final answer must say, side = ...
... cm
1
+
(4x + 6) cm
I

Answers

The length of the square in the given diagram is calculated as: 20 cm.

What is a Square?

A square is a shape that has 4 equal sides of the same length.

In the diagram given, the square has the following expressions representing two sides:

(6x - 1) cm

(4x + 6) cm

Since both sides are equal sides of a square, therefore:

6x - 1 = 4x + 6

6x - 4x = 1 + 6

2x = 7

x = 7/2

x = 3.5

Side of the square = 6x - 1

Plug in the value of x

Side of the square = 6(3.5) - 1 = 20 cm

Learn more about square on:

https://brainly.com/question/1538726

#SPJ1

A Pizza factory has come out with two kinds of pizzas.A square pizza of side 26 cm costs AED 80 and a circular pizza of diameter 28cm costs AED 80. Which pizza is a better deal? Justify your answer.[=227].

Answers

Answer:

Square pizza

Step-by-step explanation:

To obtain which pizza is the best buy:

Cost of square pizza :

AED 80

side length, s = 26cm

Area of square, A = s²

A = 26² = 676 cm²

1 AED of square pizza gives : 676 / 80 = 8.45 cm²

Cost of circular pizza :

AED 80

Radius, r = 28cm

Area of circle, A = πr²

A = 22/7 * 14 * 14 = 22 * 2 * 14 = 616 cm²

1 AED of circular pizza gives : 616 / 80 = 7.7cm²

Hence, square pizza is the better buy ;

8.45cm² > 7.70 cm²

First to answer gets brainliest

Answers

The value of the house increases by 104% would be my first option

Answer:

I'm pretty sure it's d.

Step-by-step explanation:

Here is a better image of the question.

You like math then here

Answers

Answer:

-8b + 9 - 5k

Step-by-step explanation:

I am assuming the blue highlighted portion is your answer, and is not a part of the initial question

(-4b + 15 - 7k) - (6 + 4b - 2k)

Combine like terms

-4b - + 4b

Negative + Positive = Negative

-4b - 4b = -8b

15 - 6 = 9

-7k - - 2k

Negative + Negative = Positive

-7k + 2k = -5k

Put them all together:

0b + 9 - 5k

Simplify

-8b + 9 - 5k

I got the same answer as you (just in a different order)

The percent of sales tax is 8% if the skateboard cost $98 what is the total amount you will pay including tax?

Answers

Answer:

The total amount of tax is $7.84, so add that to $98 and you get $105.84 dollars total.

Step-by-step explanation:

PLS ANSWER I WILL BE GIVING BRAINLIEST:)

Answers

Answer:

Step-by-step explanation:

first do what's in the parenthesis, so 2x10 is 20 and 20 divided by 2 is 10.

10 x 5 is 50

Hope this helped :)

The answer is d.
None of the others equal 50.

CAN SOMEONE PLZ HELP

Answers

Answer:

File will help, im sure

Step-by-step explanation:

Plz mark as brainliest if correct! Have a nice day!!!

-Lil G

Solve the following equations (Show your work)
F) 2/x-3=4

G 7/2x+5=2/3

H)7/x-9 -5=0

Answers

F) 2=4(x-3), 2=4x-12, 14=4x, x=3.5
G) 7=2/3(2x+5), 7=1.33x+3.333, 3.667=1.33x, x=2.75
H) 7/(x-9)=5, 7=5(x-9), 7=5x-45, 52=5x, x=10.4

Hope it helps

Please help thanks I appreciate it! :)

Answers

Answer:

Step-by-step explanation:

120 x .6 =72

120-72 = 48

48x .6 = 28.8

72+28.8 = 100.8

She sold approximately 101 cups of coffee

PLEASE help with #17! WILL GIVE BRAINLIEST!!!

Answers

Answer:

Step-by-step explanation:

You want to know what f(a) is when a = 3That means that wherever you see an a on the right, you put in a 3.To put the question in a bit clearer language, what is the y value (f(a)) is the y value), when a = 3

f(a) = a^3 - 4a^2 + 2a - 6f(3) = 3^3 - 4(3)^2 + 2(3) - 6f(3) = 27 - 36 + 6 - 6f(3) = - 9

HELP, 7th grade math

Answers

Answer:

$300,000 ( I hope this was helpful) >;D

3x3x3x3x2x2. Complete the expression using exponents

Answers

Answer:

3 to the power of 4 and 2 squared

Step-by-step explanation:

count the amount of numbers and put the little number in top right (exponent)

Answer:

3x3x3x3x2x2 = (3x3x3x3) x (2x2) = 3^4 x 2^2

Let me know if this helps!

Other Questions

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Can someone help me PLZ! I keep posting the same question and no ones helping me :(((((((((((( Find the solution to the system of equations below. Start by adding the equations. Write your answer as an ordered pair. -2x + 2y = -8 2x + y = 5

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Can someone help me PLZ! I keep posting the same question and no ones helping me :((((((((((((

Find the solution to the system of equations below. Start by adding the equations. Write your answer as an ordered pair.

-2x + 2y = -8
2x + y = 5