PLEASE SOMEONE HELP ILL MARK BRAINLIEST AND 5 STARS


2.1/x+ 1 4/5= 3/10x

Answers

Answer 1

Answer:

the answer is .3 or 3/10

Step-by-step explanation:

Answer 2

9514 1404 393

Answer:

  x = -1

Step-by-step explanation:

Putting the entire equation in decimal form, we have ...

  2.1x + 1.8 = 0.3x

Subtracting 0.3x gives ...

  1.8x +1.8 = 0

Dividing by 1.8, we get ...

  x + 1 = 0

So, the solution is ...

  x = -1 . . . . . . subtract 1 from both sides.

_____

Additional comment

Sometimes, when all of the numbers in the equation are divisible by the coefficient of x, it works out well to do that division before separating variables and constants. The other way this could have been solved is ...

  subtract 1.8  ⇒  1.8x = -1.8

  divide by 1.8  ⇒   x = -1


Related Questions

The lager of two numbers is 15 more than three times the smaller.If the sum of the two numbers is 63,find the numbers

Answers

the numbers are 51 and 12.
x = 3y + 15
51 = (3 x 12) + 15
51 + 12 = 63

Answer:

The numbers are:

The smaller number = 12The larger number  = 51

Step-by-step explanation:

Let 'x' be the smaller number

As the lager of two numbers is 15 more than three times the smaller. so,

The larger number = 3x+15

As the sum of the two numbers is 63, so the equation becomes

[tex]x + 3x + 15 = 63[/tex]

[tex]x+3x=63-15[/tex]

[tex]4x=48[/tex]

Divide both sides of the equation by

[tex]\frac{4x}{4}=\frac{48}{4}[/tex]

[tex]x = 12[/tex]

Therefore,

The smaller number = x = 12

The larger number  = 3x+15 = 3(12) + 15 = 36+15 = 51

Hence, the numbers are:

The smaller number = 12The larger number  = 51

Justin uses 2/3
of a gallon of paint to cover 1/12 of his bedroom wall.
How much paint is needed to cover the entire wall?

Answers

Answer

you would need 24/3 paint to cover the wall.

Step-by-step explanation:

and 24/3 simplified is 8/1.

so you will need 8/1 paint to cover the wall.

please help i’ll give brainliest

Answers

Answer:

C

Step-by-step explanation:

What is the correct answer? ​

Answers

Step-by-step explanation:

id-8253381513

password-9999

Answer:

the correct answer is A. but dont trust me on this

Step-by-step explanation:

Emily typed 456 words in 8 minutes. Her friend Mary typed 32 fewer words in the
same time frame. At the same rate, how long would it take Mary to type 954 words?

Answers

The correct answer is 18 minutes

Show work if possible, thanks!

Answers

here is the correct answer

Solve the equation. −14=k+6

Answers

Answer:

k=-20

Step-by-step explanation:

-14=k+6

subtract 6 from both sides

-20=k

Answer:

k=-20

Step-by-step explanation:

-14=k+6

Really there is only one step subtracting 6 from both sides because it is a positive and needs to leave the equation:

-14=k+6

-6      -6

Which would be k=-20

can someone help? i dont understand it really well

Answers

The answer is the first one

How can real life problems involving one variable be modeled and solved?

Answers

Answer:

Writing an equation to model a real-world problem is often easier when you take the information given in the problem and express it in verbal form by using a few key words. This is very similar to translating verbal phrases into variable expressions. The difference is you will be translating a verbal sentence into an equation. Then, you can solve the equation using inverse operations.

Let’s look at an example.

Monica purchased a pair of tennis shoes that had this sticker on the bottom of the shoe.

$99.00$65.99

Use a verbal model to write and solve an equation to determine the amount of money Monica saved by purchasing the shoes on sale.

First, write a verbal model to represent the problem.

Verbal Model:

Sales Price+Amount Saved=Original Price

Next, name the variable.

Let ‘

s

’ represent the amount saved.

Next, solve the equation you have written. Remember an equation is like a balance scale. To keep the scale balanced, what you do to one side of the equation you must also do to the other side. When solving an equation your goal is to isolate the variable on one side of the equation and the numerical terms on the other side. This is done by performing inverse operations.

65.99+s=99.00

First, isolate the variable ‘

s

’ by subtracting 65.99 from both sides of the equation. Subtraction is the inverse of addition.

65.99−65.99+s=99.00−65.99

Next, simplify each side.

s=33.01

The answer is $33.01.

A variable can be any element that we can, in some way, change.

The general form of modeling and solving real life problems that involve one variable is:

Identify what the variable is and define it.Write the equation.Isolate the variable on one side of the equation.

So for example, something that we can define with a variable is "How many of one type of item we can buy if we know its price"

For example, if we know that a shirt costs $10, then the price of x of these shirts is:

y = $10*x

Now, if you know how much money you have, you can use this equation to find how many shirts you can buy.

For example, you know that you have $20, then y = $20

$20 = $10*x

To solve this we need to isolate the variable on one side:

$20/$10 = x

2 = x

You can buy two shirts.

Now, the general form of modeling and solving real life problems that involve one variable is:

Identify what the variable is and define it.Write the equation.Isolate the variable on one side of the equation.

If you want to learn more, you can read:

https://brainly.com/question/1806181


Find the inverse of the function. *

Answers

g(x) = 1/x - 2

g^(-1) => x = 1/g(x) - 2

g^(-1) => x + 2 = 1/g(x)

g^(-1) => g(x)(x + 2) = 1

g^(-1) => g(x) = 1/(x + 2)

Answer: D. g^(-1) = 1/(x + 2)

can someone put
< or > for these questions pls

Answers

Answer:

2/3=6/9

5/24>1/6

Step-by-step explanation:

14. Find the midpoint of the line segment with the endpoints located at (-3, 8) and (-8, 2).
A. (-13, -4)
B. (2.5, 3)
C. (2.5, -3)
D. (-5.5, 5)

Answers

The answer is D (-5.5,5)

There is 612.75 kg of chicken feed for the animals. How many grams of feed is there?

Answers

            (っ◔◡◔)っ ♥ Hey Honey Here! ♥

Answer:

612750 grams!

Step-by-step explanation:

1 kg = 1000 grams

                               ♥ (  お力になれて、嬉しいです!) ♥

A manufacturer produces 950 light bulbs per
day. Write an equation to find the number of
bulbs b the manufacturer makes in any
number of days d.

Answers

Answer:

b =950d

Step-by-step explanation:

The manufacturer makes 950 bulbs a day. So, you have to multiply the number of days by 950 to get the number of bulbs made. This can be written as an equation:

b = 950d

Hope this helps :)

An equation to find the number of bulbs b the manufacturer make in any number of days d will be written as b =950d.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that a manufacturer produces 950 light bulbs per day.

The equation can be written as:-

b = 950d

The manufacturer makes 950 bulbs a day. So, you have to multiply the number of days by 950 to get the number of bulbs made. This can be written as an equation:

To know more about an expression follow

https://brainly.com/question/14099845

#SPJ2

X+y=8 You can find more Solutions by replacing x with other values and then solving for Y. For example, let X = 6. What is y? ... the solutions of x+y=8 x is 5 and y is 3

Answers

Answer:

Step-by-step explanation:

x + y = 8 ⇔ y = - x + 8

If x = 6 , then y = - 6 + 8 = 2

( 6, 2 )

If x = 0 , then y = 0 + 8 = 8

(0, 8)

If x = 8 , then y = - 8 + 8 = 0

(8, 0)

20000+8000000+4+3000+900​

Answers

Answer:

80,023,904

Step-by-step explanation:

Just add all the numbers together.

Answer:

"8023904

Step-by-step explanation:

20 000 + 8 000 000=8020000

4+3000=3004

3004+900=3904

3904+ "8023904"

What is the volume of a cylinder with a height of 10 inches if the area of its base is 40 square inches?
400 in3
1,256 in3
4,000 in3
12,560 in3

Answers

Answer:

400 in³

Step-by-step explanation:

Height (h) = 10 in

Base Area [tex] \sf (A_B) [/tex] = 40 in²

Formula of Volume of Cylinder:

[tex] \boxed{ \bf{V = A_Bh}}[/tex]

By substituting values in the equation, we get:

[tex] \rm \longrightarrow V = 40 \times 10 \\ \\ \rm \longrightarrow V = 400 \: {in}^{3} [/tex]

Answer:

A

Step-by-step explanation:

help pls this is a missing assignment

Answers

Answer:#1 she didn't finish solving

#2 finish solving for a.

#3 it is similar to solving a two step equation because it is a two step equation just there are variables to go along with it.

Step-by-step explanation:

Grade six math, Two large and 1 small pumps can fill a swimming pool in 4 hours. One large and 3 small pumps can also fill the same swimming pool in 4 hours. How many hours will it take 4 large and 4 small pumps to fill the swimming pool

Answers

This question is the same as yours and has a verified answer:

https://brainly.com/question/9118873?referrer=fromSearch

I hope this helps!

Solve the equation for all real values of x.
secʻx+ 2 secx = 0

Answers

Answer:

no solution for x in the real numbers

Answer:

A . 2pi/3+ 2nk.....

Step-by-step explanation:

4 1/2 x 2 2/3
ANSWER ASAPPPP TO BE BRAINLIEST
EXPLAIN HOW AND BE RIGHT

Answers

Answer:

12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

You turn the fractions improper, 9/2 x 8/3. Multiply the top numbers and then multiply the bottom. Simplify to get 12.

I'll give brainliest please help

Answers

Answer:

x=15

Converse: If line x and y are parallel then angles on the same line are supplementary angles.

Step-by-step explanation:

Converse:

Let's start with the converse, so if line x and y are parallel then angles on the same line are supplementary angles. I'm not sure if that's the converse your teacher wants but my teacher taught me this.

Finding x:

Now we know that the angles are supplementary angles, that means if w add them together we get 180°. So our equation will be [tex]10x-22+3x+7=180[/tex]. Now we just solve it. We start by combining like terms, then adding the 15 to both sides, and lastly we divide the 13 to both sides and get...

[tex]10x-22+3x+7=180\\13x-15=180\\13x=195\\x=15[/tex]

x=15

Write the equation x2+24x+60=0 in the form (x+p)2=q

Answers

Answer:

(x+12)^2=84

Step-by-step explanation:

x^2+24x+60=0

x^2+24x=-60

x^2+24x+(24/2)^2=-60+(24/2)^2

(x+24/2)^2=84

(x+12)^2=84 (ans)

1/2,5/16,3/32,3/4,3/8 make it in least to greatest order plz

Answers

Answer:

3/32 , 5/16 , 3/8 , 1/2 , 3/4

Step-by-step explanation:

Multiply them to give them all a common denominator of 32

Answer:

3/32, 5/16, 3/8, 1/2, 3/4,  

the mid point of ab m(1,-1). if the coordinates of a are (7,-4) what are the coordinates of b

Answers

9514 1404 393

Answer:

  b = (-5, 2)

Step-by-step explanation:

b = 2m - a = 2(1, -1) -(7, -4) = (2-7, -2+4)

b = (-5, 2)

__

About the formula

The midpoint is given by the formula ...

  m = (a+b)/2

Solving for b gives ...

  b = 2m -a . . . as above

What is the value of the expression 9 + 4 n minus 1 when n = 3? 15 20 36 38

Answers

Answer:

The answer is 20.

Step-by-step explanation:

Answer:

its B

Step-by-step explanation:

look at first one

What is an equation of the line that passes through the points (0,8) and (-5,4)? Put your answer in fully reduced form.​

Answers

The equation is Y=0.8x+8

find the mode of the following numbers:
7,4,3,5,6,3,3,2,4,3,4,3,4,3,3,3,3,2,2,4,3,5,4,3,4,3,4,3,1,2,3​

Answers

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

3

A boat goes 3/4 hours with a speed of 8mph and 1/3 hours with a speed of 12mph. What distance did the boat cover in all this time?

Answers

Answer:

10 miles

Step-by-step explanation:

Distance d = v t

v - speed/velocity

t - time

d = [tex]\frac{3}{4}[/tex] (8) + [tex]\frac{1}{3}[/tex] (12) = 6 + 4 = 10 miles

What is the equation of the line that passes through the point (6, 6) and has a slope
of o?

Answers

y=6, because horizontal lines have a zero slope and they’re written in the form of y=. Knowing that, our y-value in this case is 6, so therefore our equation is y=6. I hope this helps and pls give thanks!!
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