Mathematics High School

Solve by substitution -2x+5y=-17 y=-4x+1

Answers

Answer 1

Answer:

-2x +5(-4x+1) =-17

-2x -20x+5=-17

-22x+5=-17

-22x=-22

x=1

y=-4(1)+1

y=4+1

y=5

(1,5)

Related Questions

Pleaseeee helppp answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!

Answers

It’s 6 because the full length is 12 and it’s asking for the half of it

please help me 4t−t+2

Answers

Answer:

The answer is 3t + 2

Step-by-step explanation:

Subtract t from 4t.

hoped this helped!

brainly, please?

Given the equation 25 + 7x = 11
x = -2
x = 2
X = -14
x = 14

Answers

Answer:

x = -2

Step-by-step explanation:

Isolate the variable (or x) by subtracting 25 from both sides.

We do this and get 7x = -14

Divide both sides by 7 and we get x = -2

What type of function is f(x)?
f(x) = -2(5)*

Answers

Its a Linear function

what is the answer to (a+3)(b+5)

Answers

Answer:

ab+5a+3b+15

Step-by-step explanation:

(a+3)(b+5)

a(b+5)+3(b+5)

ab+5a+3b+15

Write an
equation of a line with the given slope and y-intercept.
m=-2, b=3

Answers

Answer:

y=-2x+3

Step-by-step explanation:

y=mx+b

m=-2,b=3

so, y=-2x+3

hopes this helps

The clock shows the time that Ron left his home in the morning. He came home 7

hours and 35 minutes later. What time did Ron come home?

Answers

Answer: 14:35 hrs

Step-by-step explanation:

Missing time that Ron left was 07:00 hrs  

Ron left the house at 07:00 hrs. If he arrived back to the house 7 hours and 35 minutes later, you can find out what time he arrived by simply adding the time he left to the time he stayed outside:

= 7 + 7hrs 35 minutes

= 14 hrs 35 minutes

= 14:35 hrs

An expression is shown below. Which expression is equivalent to the expression shown?
- 2x(x + y - 3) + 3(-x + 4y) + y(3x + 5y - 3)
- 2x2(5y2 + xy + 3x + 9y
- 2x2 + 5y2 + xy - 6x +9y
- 5x2 + 5y2 + xy + 3x + 9y
- 5x2 + 5y2 + xy - 6x + 9y

Answers

Note: In option A, it should be "+" instead of "(".

Given:

The expression is

[tex]-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)[/tex]

To find:

The equivalent expression.

Solution:

We have,

[tex]-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)[/tex]

Using distributive property, we get

[tex]=-2x(x)-2x(y)-2x(-3)+3(-x)+3(4y)+y(3x)+y(5y)+y(-3)[/tex]

[tex]=-2x^2-2xy+6x-3x+12y+3xy+5y^2-3y[/tex]

On combining like terms, we get

[tex]=-2x^2+5y^2+(-2xy+3xy)+(6x-3x)+(12y-3y)[/tex]

[tex]=-2x^2+5y^2+xy+3x+9y[/tex]

The expression [tex]-2x^2+5y^2+xy+3x+9y[/tex] is equivalent to the given expression.

Therefore, the correct option is A.

Is the trinomial a perfect square? write yes or no. x^2+12x+36

Answers

Answer:

no

Step-by-step explanation:

- 9 + x = 11 x =___ help

Answers

Answer:

-0.9

Step-by-step explanation:

Answer:

x=-9/10 or -0.9

Step-by-step explanation:

You have to isolate the variable by dividing each side by factors that don't contain the variable. Hope this helped! :)

helpppppp


kddbbbjkluuuu

Answers

How many questions are there?

Describe the meaning of y >_ 7.9 in words.

Answers

this means that y can be equal to 7.9 or any other number above

Is(3, 2) a solution to the system on inequalities ?Explain.

Answers

Answer:

No

Step-by-step explanation:

The solution of the system of inequalities is the intersection region of all the solutions in the system. Example 1: Solve the system of inequalities by graphing: y≤x−2y>−3x+5. First, graph the inequality y≤x−2 .

do please help (THESE ARE EXTRA WORDS BECAUSE BRAINLY WANTS SOME)

Answers

Answer:

2 units to the right

1 units up

Step-by-step explanation:

(0, -9); slope = 4
Write in slope intercept form

Answers

Answer: y = 4x-9

Step-by-step explanation: We can follow the equation y=mx+b. Where we know m = 4 and b(the y-intercept) = -9. So the answer would be y=4x-9.

ABCD is a parallelogram. solve for x
a) 2
b)22
c)24
d)48

Answers

Answer:

b) 22

Step-by-step explanation:

180 = (4x+12) + (3x+14)

180 = 7x + 26

7x = 154

x=22

Enter the range of values for x:
2x - 4
10
45
60
[?]

Answers

Answer: 2

Step-by-step explanation:

The range of value of x is, [tex]x>2[/tex]

Since the Length of any side of quadrilateral is always be positive.

So,  [tex]2x-4[/tex] is always greater than zero.

                 [tex]2x-4>0\\\\2x>4\\\\x>\frac{4}{2}\\\\x>2[/tex]

Thus, the range of value of x is, [tex]x>2[/tex]

Learn more:

https://brainly.com/question/22739156

7W + 5 + 6 + 3w
Just help me pleAsee

Answers

Answer:

the answer is 10w + 11

mark invested 125 he earned a simple interest of 3% per year on the initial investment if no money was added or removed from the investment what was the amount of interest mark received at the end of two years

Answers

Answer:

$7.50

Step-by-step explanation:

formula for simple interest:

I = prt

I = ($125)(0.03)(2)

I = $7.50

Answer:

You time 125 by 1.03 twice subtract 125 from that awnser to get the amount of money from interest 7.6125 is the awnser

Step-by-step explanation:

How much more does the 5-year loan cost overall than the 4-year loan?

Answers

Answer:

$600 overall

Step-by-step explanation:

Answer:

$600 more overall

Step-by-step explanation:

i'm great at math

Round 2,641 to the nearest thousand

Answers

It would be 3,000 as it is the next thousand. Since 2,641 is over 2,500 you can round to the next thousand 3,000

Answer: 2,641⇒3,000

Step-by-step explanation:

      2                       6                     4                 1

Thousand         Hundred            Ten             one

------------------------------------------------------------------

Question:

Round 2,641 to the nearest thousand

Solve:

When the number is less than 5, you move down

When the number is greater or equal to 5, you move up

2 is the thousands place

the number before 2 is 6 on the hundreds place

6 is greater than 5, so you move up

Hope this helps!! :)

Please let me know if you have any questions

Pleaseeee help answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

The answer to the question is 540°

Step-by-step explanation:

The reason to the answer is:-

There is a formula which is (n - 2) × 180

n is the number of sides the shape has, and there is 5 sides so we subtract 5 - 2 = 3

Therefore, 3 × 180 = 540°

I hope this answer helps!

Answer:

540°

General Formulas and Concepts:

Math

Counting

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Geometry

Sum of Angles: 180(n - 2)°

Step-by-step explanation:

Step 1: Define

We have a polygon with 5 sides (a pentagon)

n = 5

Step 2: Find Sum

Substitute in n [Sum of Angles]:                                                                    180(5 - 2)°(Parenthesis) Subtract:                                                                                   180(3)°Multiply:                                                                                                           540°

find the volume of the earth if the diameter is 7917.5​

Answers

Answer:

Step-by-step explanation:

diameter=7917.5

r=3958.75

the earth is sphere

V=4/3x3.14xr^3

V=2.6*10^11

For every $10,000 a company earns, it gives $500 to charity. How much does the company give to charity for every $1 earned?

Answers

Answer:

$0.05 i think

Step-by-step explanation:

Round your answer to the nearest hundredth

Answers

Answer:

15.01

Step-by-step explanation:

Tangent=Opposite/adjacent

Tan(65)=?/7

Tangent of 65 x 7=

15.01

can you guys help me?

Answers

Pretty sure you have to use the Pythagorean Theorem.
a^2+b^2=c^2

So you would plug in your numbers that you already have (6 and 10) But notice that 10 is the hypotenuse (longest side) so
6^2+x=10^2

Then you would solve it and you should end up with 11.6619

simplify 3a x 4, thank youuuu

Answers

Answer:

12a

3 x 4 =12a

Betsy bought 10 pencils for $0.15 each, 8 notebooks for $1.50 each, and a book for $45.00.

Answers

$58.50 is the answer

A triangle with sides 6, 12, and 18 is similar to another triangle whose longest side is 24. What is the perimeter of the larger triangle?

Answers

Answer:

Possibly 48 because perimeter I believe is found by adding all sides up sorry if I'm wrong friend. -Your friend, Cipher

Step-by-step explanation:

How many 3/4-cup servings are in 1/2 of a cup of milk? Write your answer in simplest form. Write your answer in a fraction.

Answers

Answer:

3/8

Step-by-step explanation:

The question requires that we find the amount of 3/4 cup servings in 1/2 cup of milk

= 3/4 × 1/2

= 3/8

Hence the amount of cup servings is 3/8

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