Mathematics High School

6 + 18r = 20r - 18 - 4r

Answers

Answer 1

Answer:

r = -12

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

6 + 18r = 20r - 18 - 4r

Step 2: Solve for r

Combine like terms:                    18r + 6 = 16r - 18Subtract 16r on both sides:         2r + 6 = -18Isolate r term:                               2r = -24Isolate r:                                        r = -12
Answer 2
6+18r=20r-18-4r
6+18r=18r-18
-6. -6
18r=18r-24
-18r. -18r
R=-24

Related Questions

Identify the domain of the function.

Answers

Answer:

Step-by-step explanation:

domain represents the numbers at the x endpoints of a graph.

on the graph we see that on the left, the line ends when x is -4

on the right, the line ends when x is 4

the domain is

-4, 4

but notice how on the left there is an open circle

this will be written with a parentheses

( -4, 4

and notice how on the right there is a closed circle

this will be written with a bracket

(-4, 4]

so the answer is C

i’m pretty sure The answer is C

..What is the sum.. please help me and dont guess on this is important (will give braniliest) Please help ;((.

Answers

Answer:

-2 3 / 7 is the answer to this question

.....................................................

Answers

.......................................................
..................................……………hi :)

Whoever solves this will get BRAINLIEST answer!!! Please help me out!​

Answers

Answer:

x+x+x=180

3x=180

x=180/3

x=60

60 the answer is 60 hope you have a good day today!

NEED ASAP!! PlsssSSS WILL GIVE BRAINIEST!!

Determine if the triangles are similar. If similar, state how and complete the similarity statement.

Answers

Answer:

sss similarities

Step-by-step explanation:

!!!!!!!!!!÷

Similarities hope this helps you out

What is
y
+
3
=
7
(
x
−
2
)
y+3=7(x−2)y, plus, 3, equals, 7, left parenthesis, x, minus, 2, right parenthesis written in standard form?
Choose 1 answer:

Answers

The standard form of the given expression is 7x - y = 17

Equation of a line in standard form

The equation of line in standard form is expressed as Ax + By = C

Given the equation

y + 3 = 7(x - 2)

Expand

y + 3 = 7x - 14

y -7x = -14 - 3

-7x + y = - 17

7x - y = 17

Hence the standard form of the given expression is 7x - y = 17

Learn more on standard form  of equation here: https://brainly.com/question/187506

#SPJ1

I can’t understand what the question is asking me pls help

Answers

Answer: 3/4

Step-by-step explanation:

28 members in all - 12 boys = 16 girls

12/16 = 3/4

In order to join gymnastics after school, there is $75 on-time fee and $30 monthly fee. Which slope-intercept from equation models this situation
A. Y=30x + 20
B. Y=75x + 30
C. Y=30x + 75
D. Y= 30x

Answers

c. Y=. 75x. + 30

Is the correct answer

In the figure, lines I and mare parallel lines cut by transversal p.
Andrea said that if m 2 2 = 40° then m 3 must also be equal to 40°. Which justifies Andrea's statement?
A
Alternate interior angles are congruent.
B. Alternate exterior angles are congruent.
C. Corresponding angles are congruent,
D. Consecutive interior angles are supplementary

Answers

Answer:

The statement which justifies Andrea's statement is "Corresponding angles are congruent" ⇒ C

Step-by-step explanation:

If two parallel lines intersected by a line, then there are some pair of angles are formed

Corresponding angles that are congruentAlternate interior angles that are congruentAlternate exterior angles that are congruentConsecutive interior angles that are supplementary

In the given figure

∵ Lines l and m are parallel

∵ They are cut by transversal p

∵ ∠2 and ∠3 are in the corresponding position

→ By using the 1st rule above

∵ Corresponding angles are congruent

∴ ∠2 ≅ ∠3

∴ m∠3 = m∠2

∵ m∠2 = 40°

∴ m∠3 = 40°

The statement which justifies Andrea's statement is "Corresponding angles are congruent"

Write the equation in slope- intercept form

4x+2y=12

Thanks!

Answers

Answer:y = -2x + 6Hope this helps!!

determine the value of x , (5)(x)=0

Answers

Answer:

x=0

Step-by-step explanation:

The parenthesis mean that it's multiplication, so it might be easier to convert that to: 5 · x = 0. We then know that anything times zero equals zero, so 5 · 0 = 0! I hope this helps! :)

SOMEONE PLEASE ANSWER
the equation is 7x-3 over 9 > 8-2x

Answers

Answer:

solving the inequality we get [tex]\mathbf{x\geq 3}[/tex]

The graph is attached below.

Option C is correct option.

Step-by-step explanation:

We need to solve the inequality [tex]\frac{7x-3}{9}\geq 8-2x[/tex]

First we will solve the inequality to find value of x

Solving:

[tex]\frac{7x-3}{9}\geq 8-2x[/tex]

Step 1: Multiply both sides by 9

[tex]9(\frac{7x-3}{9})\geq 9(8-2x)\\7x-3\geq 72-18x[/tex]

Step 2: Adding 3 on both sides

[tex]7x-3+3\geq 72-18x+3\\7x\geq 75x-18x[/tex]

Step 3: Add 18x on both sides

[tex]7x+18x\geq 75-+18x\\25x\geq 75[/tex]

Step 4: Divide both sides by 25

[tex]\frac{25x}{25}\geq \frac{75}{25}\\x\geq 3[/tex]

So, solving the inequality we get [tex]\mathbf{x\geq 3}[/tex]

The graph is attached below.

Option C is correct option.

please help! BRAINLIEST to correct answer!

Answers

Answer:

A

Step-by-step explanation:

u can just test them out

Answer:

A. y = 2[tex](x - 2)^{2}[/tex] + 5

Step-by-step explanation:

positive 2 because the parabola faces upwards, and + 5 because it's vertex is places at (2,5)

Which ordered pair represents a reflection of the point (-3,5) across the y-axis?

Answers

Answer:

-5,6

Step-by-step explanation:

YO MOM ZZZZZZZZZZZZZZZZP

I need help please I got 10 minutes to finish

Answers

Answer: i dont see nonthing what the question

Step-by-step explanation:

what’s the question

Audrey bought a refrigerator for $266 that was originally priced at $665. What percentage is the discount?

Answers

Answer:

40.6%

Step-by-step explanation:

discount percentage:

x/y*100

266/655 *100 which is 40.6%

Hope this helps plz hit the crown :D

Matt can walk 500 m from his home on King Street, and then 900m along Queen Street to go to his school. He can also walk across a diagonally across a park from his home to his school. Assuming King Street and Queen Street meet at right angles, how far does he walk across the park to go to school?


Answers

Answer:

He walks 1030 meters if he walks across the park.

Step-by-step explanation:

In order to solve this question we will need to know that [tex]c^{2} = a^{2} + b^{2}[/tex] (were c is the length of the hypotenuse (the diagonal line) of a right angle triangle, and a and b are the legs (the sides that form a right angle). So them means that.....

Let "c" be the distance he will need to walk if he was going to go through the park

Let "a" be the distance he walks on King Street

Let "b " be the distance he walks on Queen Street, then.....

[tex]c^{2} = a^{2} + b^{2}[/tex]

[tex]c = \sqrt{a^{2} + b^{2} }[/tex]

(Now plug in the values of a and b and get.....)

c = [tex]\sqrt{500^{2} + 900^{2} }[/tex]

c = [tex]\sqrt{1060000 }[/tex]

c = 1029.563014............

So I would assume that you have to round to the nearest meter. And as a result we get 1030 meter.

help with these equations please!

Answers

1) yes
2) x=-4,y=-7
3) x= -3, y=4
4) x= -1, y=2
5) x= -5, y=-8

tell weather each equation has one solution , zero solution or infinte solutions really easy : )

Answers

Answer:

several different solutions,

1.6y+y-4/15y+1 1/6y=2 1/3

Answers

1.6y+y-4/15y+7/6y=21/3

We move all terms to the left:

1.6y+y-4/15y+7/6y-(21/3)=0

Domain of the equation: 15y!=0

y!=0/15

y!=0

y∈R

Domain of the equation: 6y!=0

y!=0/6

y!=0

y∈R

We add all the numbers together, and all the variables

1.6y+y-4/15y+7/6y-7=0

We add all the numbers together, and all the variables

2.6y-4/15y+7/6y-7=0

We calculate fractions

2.6y+(-24y)/90y^2+105y/90y^2-7=0

We multiply all the terms by the denominator

(2.6y)*90y^2+(-24y)+105y-7*90y^2=0

We add all the numbers together, and all the variables

(+2.6y)*90y^2+(-24y)+105y-7*90y^2=0

We add all the numbers together, and all the variables

105y+(+2.6y)*90y^2+(-24y)-7*90y^2=0

Wy multiply elements

-630y^2+105y+(+2.6y)*90y^2+(-24y)=0

We get rid of parentheses

-630y^2+105y+(+2.6y)*90y^2-24y=0

We add all the numbers together, and all the variables

-630y^2+81y+(+2.6y)*90y^2=0

Hoped this helped :)


How many hours until the charges for each company will be equal and what is that charge

Answers

Answer:

25 hours, charge= 800

Step-by-step explanation:

300 + 20x = 500 + 12x

8x = 200

x = 25

300 + 20(25)

300+500 = 800

500 + 12(25)

500 + 300 = 800

Katie can buy 2 lb of apples for $7. What is the unit rate for the apples?

Answers

Answer:

$3.50 per lb of apples

Step-by-step explanation:

7/2 = 3.5

3.5 per appleeeeeeeee have a good day

1.Find the standard deviation of the data.

2.Explain what the mean and standard deviation tell you about the data you
collected
PLEASE HELP QUICK ILL MARK BRAINLIEST‼️

Answers

Answer:

1.33

Step-by-step explanation:

I used a standard deviation calculator

Ill edit once i figure it out

The product of twice a number and five is the same as the difference of nine times the number and 7/4

Answers

Answer:

36

hope this helps

Step-by-step explanation:

Solve 4x + 8y = 16 for x.
O A. x=-8y + 4
O B. x= -2y+ 16
O C. x= -2y+ 4
D. X = 8y + 16

Answers

I got x = 4-2y

4x+8y=16
-8y=-8y

4x=16-8y
— ——-
4 4

x=4-2y
C) X = -2y + 4

4x + 8y = 16

4x = 16 - 8y

4x = 4 (4 - 2y)

x = 4( 4 - 2y)/4

X = 4 - 2y

X = -2y + 4

Please HELP!!
Which linear inequality is represented by the graph

Answers

Answer:

The answer should be y ≤ 1/3x - 1 I believe

What is the value of x?
A=2
B=4
C=5.5
D.7

Answers

I think D or B I believe

What is the equation of the line that has a slope of 1/2 and contains the points 0,3?show work please

Answers

Answer:

Step-by-step explanation:

y - 3 = 1/2(x - 0)

y - 3 = 1/2x - 0

y = 1/2x + 3

HELPPPPPPPPP best answer will get braainliest

Answers

180 (and then whatever the units of measure are)

to find the perimeter you have to add all four sides together to get your total. (3y+2)+(3y+2)+(5y+8)+(5y+8)

y=180

Answer:

Perimeter of the Rectangle is 2×(length+breadth)

→2{(3y-2)+(5y+8)}=2{3y-2+5y+8}=2{8y+6}=16y+12

(16y+12) is the right answer.

Emma's sister is nine years older
than Emma. Their combined ages
add up to 49. How old is Emma?
(The answer isn’t 40 bc it say that her sister is 9 years OLDER then Emma) pls help

Answers

Answer:20 I believe

Step-by-step explanation:

Answer:

yeah it should be 20 they're correct

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