Mathematics High School

PLS HELP
solve the system of equation using elimination:
3x+y=-2
5x-y=-10

Answers

Answer 1

Answer:

(-3/2, 5/2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

3x + y = -2

5x - y = -10

Step 2: Solve for x

Eliminate y

Add 2 equations together:                     8x = -12Divide 8 on both sides:                           x = -12/8Simplify fraction:                                      x = -3/2

Step 3: Solve for y

Define original equation:                    3x + y = -2Substitute in x:                                     3(-3/2) + y = -2Multiply:                                                -9/2 + y = -2Add 9/2 on both sides:                        y = 5/2

Related Questions

help me plzzzzzzzzzzzzzzzzzzzz this is due soooon

Answers

Answer:

2^10

Step-by-step explanation:

multiply the exponents

I need help ASAP!!!!!!!

Answers

The answers would be 1, 2, and 4
.
Hope this helps :)

A lab technician cuz a 12 inch piece of tubing into two pieces in such a way that one piece is two times longer than the other

Answers

The question is not complete. I have assumed you want to calculate the length of each piece.

Answer:

The shortest piece is 4 inches long

The longest piece is 8 inches long

Step-by-step explanation:

Equations

One piece of tubing is two times the other.

Let's call

x=the shortest piece of tubing

2x=the longest piece of tubing

The total length of the piece of tubing is 12 inches, thus:

x + 2x = 12

Simplifying:

3x = 12

Dividing by 3:

x = 12 / 3 = 4

x=4, and 2x=8, thus:

The shortest piece is 4 inches long

The longest piece is 8 inches long

The temperature in Bloomington on Sunday was 32.6°C. On Monday, the temperature changed by -8.25°C. What was the temperature on Monday?

Answers

Answer:

24.35

Step-by-step explanation:


PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((

Answers

Answer:

2/5 or .4

Step-by-step explanation:

basically look at the points where the line meets the graph. two points would be 0,20 and 50,40. then count the amount that it changes vertically and then horizontally. +20vertical +50 horizonal giving the slope 20/50. this can then be simplified to 2/5 or the equivalent number .4

Answer:

If I remember correctly, the slope would be 2/5.

Solve the inequality: -2.2p > -8.8

Answers

Answer:

Less than -4

Step-by-step explanation:

negative numbers multiplied by negative numbers= positive numbers

so less than -4 makes the sum greater

Answer:

p<4

Step-by-step explanation:

REASON: The four has an open circle and it's four greater than the number/variable

~~Hope this helps~~

WILL GIVE BRAINLIEST!! NEED ANSWERS!! Equations. 1. 4x-2-2x-6= -20
2. 3x+2-x+4= -14
3. 5x+6-4x-2=16
4. x+2+x+3=18
5. -2x-4+4x+2= 14
6. -3x= -9
7. -2x = 10
8. x+4 = 16
9. x-2= -15

Answers

Answer:

1. x = -6

2. x = -10

3. x = 12

4. x = 13/2 (can be rewritten as 6 1/2 or 6.5)

5. x = 8

6. x = -3

7. x = -5

8. x = 12

9. x = -13

Felicia has grown five pumpkins. The first is 25.34 pounds. The second
weighs 10.23 pounds less than the first. Both the third and fourth pumpkin
are 13.2 pounds. If the combined weight of the pumpkins is 71.87 pounds,
how much does the fifth pumpkin weigh?

Answers

Answer:

5.02

Step-by-step explanation:

The graph shows a line and two similar triangles.
у
х
y
Which expression finds the equation of the line?
Y

Answers

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[tex] \frac{y}{x} = \frac{1}{4} \: \: → \: \: y = \frac{1}{4}x \\ [/tex]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

The correct answer is the first option.

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Drilon got 63 out of 72 correct in his test.
What fraction of the marks did he get wrong?
Give your answer in its simplest form.​

Answers

Answer:7/10

Step-by-step explanation:

Answer:

1/8

Step-by-step explanation:

He got 63/72 correct.

Since he got 9 wrong (72-63).

Fraction of wrong answers = 9/72

Which is equal to 1/8.

what are the possible degrees for the polynomial function

Answers

Answer:

Degree of the polynomial function = 5

Step-by-step explanation:

Since, the given graph of a polynomial has the x-intercepts at x = -2, -0.5, 0.5, 1.5, 3

Therefore, the equation of the polynomials with zero roots will be,

y = (x + 2)(x + 0.5)(x - 0.5)(x - 1.5)(x - 3)

When we solve this expression highest degree of the variable x will be 5.

Therefore, the possible degree of the polynomial function = 5

Answer:

i was going to screenshot the answer bc i got it right but its

"odd 5 degrees or greater" :)

hope all you guys are healthy and safe

Determine the equation of the line described. Put answer in the slope-intercept form, if possible.
4) Through (-3,1), perpendicular to -3x - 7y = 2
A) y=7/8x
B) y = 3/7x + 24
C) y=-7/3x-8
D) y=7/3x+8

Answers

The answer is y= -3/7x - 2/7

A family wanted to stay in a hotel for 4
days. The hotel charges $60 a night. What is the
total they will pay?

Answers

Answer:$240

Step-by-step explanation:

That answer is 240.00 because $60 times 4 equals 240

How do I find the missing leg of a right triangle?

Answers

If you have the legs be a and B and the hypotenuse be C the A^2 + B^2 =C^2

Just fill in what you know and solve

The ratio of fish to snails is 3 to 2. There are 18 fish in the aquarium. How many snails are in the aquarium ?

Answers

Answer: 12 snails

Step-by-step explanation:

What is the distance between the points 4 and -5 on a number line?

Answers

Answer:

9

4--3--2--1--0--1--2--3--4--5

Positive        Negative

Step-by-step explanation:

What is the mean of integers
-16,-27,21,-19,14,-3
-

Answers

Answer:

-5

Step-by-step explanation:

-16+(-27)+21+(-19)+14+(-3)/6

-30/6

=-5


So given a rectangle with a perimeter of 40, and
a length 7, what is the width?

Answers

Answer:

13

Step-by-step explanation:

7 x 2=14

40-14=26

26/2=13

Answer:

40 - 14 = 26

26/2 = 13

The width is 13

pls help me area of triangle

Answers

Answer:

8

Step-by-step explanation:

first yo find the outer square and find the area of the square the tiangle is in. in this case the area is 16. next just divide that by two making your answer 8

4/9 is equivalent to 8/18 ?

Answers

Answer:

yes

Step-by-step explanation:Because if you  divide 8/18 by 2 you get 4/9 so yes

Answer:

Yes.

Step-by-step explanation:

4/9 IS equivalent to 8/18. If you simplify 8/18 it is equal to 4/9, therefore they have the same value.

Hope this helps, have a good day :)

In 12 hours , the temperature fell steadily from 17F to -7F. What was the change in temperature

Answers

Answer:

the change was 24F

Step-by-step explanation:

What happens when there is an unbalanced force acting?

This is for science

Answers

When there is an unbalanced force acting on an object, it changes its speed and/or direction of motion.

Find the slope of the linear function that passes through the points (−1, 5) and (8, 11).

Answers

Answer:

6 over  9

Step-by-step explanation:

y2-y1 over x2-x1

science pls help I give brainliest

Answers

Answer:

the answer is the third one

Step-by-step explanation:

Answer:

 c snow sleet and hail

Step-by-step explanation:

rain snow sleet ice

In his garden tim plants the seed 3 1/4 in. Below the ground. After one month the tomato plant has grown a total of 11 1/2 in. How many inches is the plant above the​ ground?

Answers

Given:

Seed below the ground = [tex]3\dfrac{1}{4}\text{ in.}[/tex]

Total length of plant = [tex]11\dfrac{1}{2}\text{ in.}[/tex]

To find:

The length of plane above the ground.

Solution:

We have,

Plant below the ground = [tex]3\dfrac{1}{4}\text{ in.}[/tex]

Total length of plant = [tex]11\dfrac{1}{2}\text{ in.}[/tex]

Plant above the ground  = Total length of plant - Plant below the ground

[tex]=11\dfrac{1}{2}-3\dfrac{1}{4}[/tex]

[tex]=\dfrac{11\times 2+1}{2}-\dfrac{3\times 4+1}{4}[/tex]

[tex]=\dfrac{22+1}{2}-\dfrac{12+1}{4}[/tex]

[tex]=\dfrac{23}{2}-\dfrac{13}{4}[/tex]

Taking LCM, we get

[tex]=\dfrac{46-13}{4}[/tex]

[tex]=\dfrac{33}{4}[/tex]

[tex]=8\dfrac{1}{4}[/tex]

Therefore, the length of plant above the ground is [tex]8\dfrac{1}{4}\text{ in.}[/tex]

rewrite 5\11 and 3\7 so that they have common denominator

Answers

Answer:

It would be 35/77 and 33/77

Step-by-step explanation:

You multiply the denominators until they are equal

10 points if ur right and I’ll mark it:)

Answers

Answer:

Hello! May I ask what "Desmos" is??

Step-by-step explanation:

can you please help me?​

Answers

D. Line sw
Skew means they aren’t parallel, nor do they intersect.

HELP PLEASE 15 [POINTS]

Answers

Answer:

A

Step-by-step explanation:

I just used Pythagorean Theorem for this one

I hope this helps!!

What is 17 + -176 + 19 + 14 - -1723 + 3 / 9.
Order of operations.

Answers

Answer:

1597.3333333333

Step-by-step explanation:

= 17-176+19+14+1723+3/9.

= 17-176+19+14+1723+0.33333333333333

= -159+19+14+1723+0.33333333333333

= -140+14+1723+0.33333333333333

= -126+1723+0.33333333333333

= 1597+0.33333333333333

= 1597.3333333333

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