Mathematics High School

System of equations pls help me

System Of Equations Pls Help Me

Answers

Answer 1

Answer:

x=6 and y=5

Step-by-step explanation:

We can eliminate the "x" variable by adding the two equations to get 6y=30. This means that y=5.

If we plug y=5 back into one of the original equations:

5x+y=35

5x+5=35

5x=30

x=6

-5x+5y=-5

-5x+5(5)=-5

-5x+25=-5

-5x=-30

x=6

Which confirms that x=6 and y=5 are indeed the correct solutions

Answer 2

Answer:

x=6 ,y=5

Step-by-step explanation:

6y=30,y=5

x=6

Related Questions

Can you please solve for this please?

Answers

Answer:

Step-by-step explanation:

Option C 1 and 3 is the correct answer

It’s 1 and 3. In order for them to be congruent then they obviously need to be the same size, so it’s not 2

C. 1 and 3

(a/b)^-3 x (a^2 b)^2 x (b^3)^0

Answers

Answer:

A^7x^2/B

Step-by-step explanation:

What’s the answer for both questions?

Answers

Answer:

id

Step-by-step explanation:

What is the value of x?

40

70

140

160

Answers

Answer:

the vaule of x is 160 add the rest to it later then you get answer A

Step-by-step explanation:

Answer:

Its B 70

Step-by-step explanation:

Edge 2022

Write an equation for the line in the given form.

the slope is 4 and (−4, 5) is on the line; point-slope form

Answers

Answer:

y - 5 = 4(x + 4)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinate Planes

Coordinates (x, y)

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate y₁ - y coordinate m - slope

Step-by-step explanation:

Step 1: Define

Identify variables.

Point (-4, 5)

Slope m = 4

Step 2: Find Equation

Substitute in variables [Point-Slope Form]:                                                    y - 5 = 4(x - -4)[Order of Operations] Simplify:                                                                        y - 5 = 4(x + 4)

Can somebody help ???

Answers

Answer:

2/5, a and b

Step-by-step explanation:

What is 9 ¼ percent of $485.95 ?

Answers

44.950375 is the answer

Pg 118 #11 - 13, 15, 16

Answers

We can't get the answer if there's no problem?

Solve the equation. Linear Equations:Variable on Both Sides

-7x-3x+2=-8x-8

Solve it step by step​

Answers

You will need to combine like terms

Find the length of the indicated
side of the similar figure.
24
18
24
x =
[?]
Enter the nutriber that belongs in the green box

Answers

10,368 that the answer
since they’re similar triangles, you can use the vertical legs to find the ratio between them: 24/18. make it equal to the other sides since the ratio should be equal, so the formula is 24/18=X/24, when solved the answer should be 32 :)

Does the table below represent a function?

Answers

Answer:

Yes

Step-by-step explanation:

It is a function because the x value doesnt repeat itself. The x value is the input

Suppose that the functions r and s are defined for all real numbers x as follows.
r(x)=x+3
s(x) = 2x
Write the expressions for (r-s) (x) and (-s) (x) and evaluate (r+s) (-1).

Answers

Step-by-step explanation:

as explained in the other question : when applying an arithmetic operation on functions, you are applying it on the functional expressions.

(r*s)(x) = (x+3)*(2x²) = 2x³ + 6x²

(r-s)(x) = (x+3) - (2x²) = -2x² + x + 3

(r+s)(-1) = (-1 + 3) + (2×(-1)²) = 2 + 2×1 = 4

DesBest Granola bars are now 25% longer. if the original bar was 20 centimeters long, how long is the new granola bar?

Answers

Answer:

25

Step-by-step explanation:

25% is a 4th of the whole number, the whole number is 20 so a 4th of 20 is 5 because 5 times 4 equals 20.

due to the fact that 25% of 20 is 5 we now have to add that to the whole number which is 20.

20 + 5 = 25

Serena needs ribbon
for an art project. The cost of the ribbon is 5 feet for $3.00.

Feet of Ribbon 1 5 10 15

Cost (in dollars) $3.00

a. Complete this ratio chart based on the information provided.

b. How many feet of ribbon can Serena buy for $12.00?

c. If Serena needs 17 feet of ribbon, how much will she pay? How do you know?

Answers

Answer:

(can't answer a since the ratio chart is incomprehensible through text)

b. 20 feet of ribbon for $12.00

12 / 3 = 4

5 x 4 = 20

c. 17 feet of ribbon for $10.20

find unit rate (cost / quantity)

3 / 5 = $0.60 per feet

0.60 x 17 = 10.2

Can you please help me I need to pass for my basketball game Tuesday please help if I don’t pass i can’t play !!

Answers

Answer:

x = 17

Step-by-step explanation:

The two given angles are supplementary angles, but also all angles on a straight light must add up to 180°:

3x + 14 + 7x - 4 = 180

Add like terms

3x + 7x + 14 - 4 = 180

10x + 10 = 180

Subtract 10 from both sides to isolate 10x:

10x + 10 - 10 = 180 - 10

10x = 170

Divide both sides by 10:

10x ÷ 10 = 170 ÷ 10

x = 17

Hope this helps!

the diameter of a circle is 8 centimeters

Answers

The radius is 4 is correct

Use the diagram to complete the statement.
Given ΔJKL, cos(60°) equals sin(?)

Answers

Answer:

cos(60) = sin(30)

Step-by-step explanation:

cosine is adjacent over hypotenuse, or [tex]\frac{21}{42}[/tex] from ∠60°

sine is opposite over hypotenuse, or [tex]\frac{21}{42}[/tex] from ∠30°

if marsha deposited 9,500$ into a savings acc 4 years ago The simple interest rate is 2% how much money did masha earn

Answers

Answer:

Kasha earned $10,260.00

Step-by-step explanation:

The total amount accrued, principal plus interest, from simple interest on a principal of $9,500.00 at a rate of 2% per year for 4 years is $10,260.00.

Which is the best reason why 3/5 is the exact quotient for 1/2÷5/6?
3/5 1/2
3/5×1/2=5/6
3/5×5/6=1/2

Answers

Answer:(3/5 times 5/6 = 1/2)

Step-by-step explanation:

Answer:

3/5 x 5/6 = 1/2

Hope it helps

Anna has £10 savings, Ben has £3.

Each week, Anna saves £2.50 and Ben saves £3.

How many weeks will it take for Anna and Ben's
savings to be in the ratio 5:4?

Answers

Answer:

6

weeks

Step-by-step explanation:

Find the value of X
PLEASE HELP ME!!!!!!!!

Answers

The answer is 44
180- 68 x 2

22 because the bottom corner is 68. 68 time 2= 138 then you do 160-138=22 meaning x=22

SUPER EASY DO FAST PLEASEE

Answers

is that a japanese symbol for beginner

find x if mi = 3x - 5 and mj = x + 5

Answers

3x - 5 = x + 5
combine like terms
2x = 10
divide to get x by itself
x = 5

20 points! :D

Help is much appreciated. :D

Answers

Answer:

I think it's 32x

Step-by-step explanation:

hope I got it right Im not to good at this

722000
= ×10


its scientific notation help please
​

Answers

Answer:

7.22 x 10^5

Step-by-step explanation:

Remember that the decimal is always to the right of the ones place.

1. Move it one place to the left and multiply by 10 to compensate.

2. Move it two places to left and multiply by 10^2.

3. Move the decimal point three times and multiply 10^3 to compensate, and the pattern continues until you reach the very last digit, the 7.

4. Numbers after the 7 that are not zeros will be after the decimal point.

so, 7.22 x 10^5

Help I need to know I only have 15 min

What does x equal in x/2=-5

Answers

Answer:

x=10. hope this helps

Step-by-step explanation:

PLEASE HELP I WILL MARK BRANLIEST

Prove triangles below congruent by SSS, SAS, AAS, ASA, or HL. If not congruent choose NC. (multiple choice)


ASA

HL

NC

SSS

AAS

SAS

Answers

Answer:

SAS

Step-by-step explanation:

We must prove that triangles ABC and EDC are congruent.

Since BD bisects AE, then AC is congruent with CE.

Since AE bisects BD, then BC is congruent with CD

Angle C is 90° in the triangle EDC and is also 90° in triangle BCA because they are vertical angles.

Being two sides and the included angle congruent, then both triangles are similar by the SAS theorem.

Answer: SAS

Which expression is equivalent to -14x + 28?

Answers

Answer:

B. 2x-3

Step-by-step explanation:

14 and 21 have a common factor which is 7 so divide both by 7 to get 2x-3.

a path forms a diagonal of a rectangular city park. a bench is placed along the path at a point that is closest to the fountain. this point is 30 yards from one end of the path and 50 yards from the other end of the path what is the distance from the bench to the fountain to the nearest yard

Answers

The answer: 39 yards

Of the 120 apartments in a building, 75 have been scheduled to receive new carpet. What fraction of the apartments have not been scheduled to receive new carpet?

1/4
3/8
5/8
3/4

Answers

Answer:

3/8

Step-by-step explanation:

Well, let's start out by figuring out how many apartments have not been scheduled to receive new carpet. We know that 75 have been scheduled and that there are 120 total apartments, so the number of apartments that have not been scheduled is 120 - 75 or 45.

Now, we need to find the fraction of apartments that have not been scheduled to receive new carpet. To do this, we divide the number of apartments that have not been scheduled to receive new carpet by the total number of apartments:

[tex]\frac{45}{120}[/tex]

We can divide both sides by a common factor of 15 to find the simplified fraction and determine our answer.

[tex]\frac{45}{120} /\frac{15}{15} =\frac{3}{8}[/tex]

So, 3/8 of the apartments have not been scheduled to receive new carpet.

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