What is the value of x in the equation Negative two-fifths x minus 2 = 18?
–50
–40
–8
–6

Answers

Answer 1
Answer: 50

Explanation: 2/5x - 2 = 18

Divide the fraction to make a decimal
2 ÷ 5=0.4

0.4x-2=18

0.4x=20 Add 2 to 18

20 ÷ 0.4=x Divide 20 by 0.4 to get x

x=50


Answer 2

Answer:

50

Step-by-step explanation:


Related Questions

What is the distance between the points (3,7) and (15, 16) on a coordinate plane? O A. 15 units O B. 17 units O C. 21 units O D. 13 units SUBMIT ans fr apx is 15 units​

Answers

the distance is 15 so A.

Which answer choice describes y = -3x2 +7x - 2 accurately?

Answers

Answer:y =  y = -7x

Step-by-step explanation: y - 14 = -7(x - (-2))

y - 14 = -7x - 14

How to write the question using the follow sentence#1


Will mark Brainliest

Answers

Answer:

7 times 4 = 28

28 + 6 = 34

Step-by-step explanation:


A 12 ft ladder leans against a wall so that the base of the ladder is 5 ft from the wall How high, to the nearest foot, up on the wall will the ladder reach?

Answers

Answer: 10.9, about 11 ft

Step-by-step explanation:

a^2 + b^2 = c^2

a^2 + (5)^2 = (12)^2

Answer:

The ladder is the hypotenuse and one side equals 5 feet.

From the Pythagorean Theorem we can calculate the other side:

other side^2 = 12^2 -5^2

other side^2 = 144 -25

other side^2 = 119

other side = 10.9087121146

Rounding, we get 11 feet.

Step-by-step explanation:

y = -2/3 x in standard form

Answers

Answer: y = -2/3x in standard form is 2x + 3y = 0

Answer:

x + y = -2/3

Step-by-step explanation:

When changing something to standard form, you want all variables on one side, and the remaining numbers gone.

what is x + 20x (-2)

Answers

Answer:

x = 1/20 = 0.050

x = 0

Step-by-step explanation:

either of those

Answer:

Hey bro,

The answer should - 39x i.e minus 39x

math question problem​

Answers

6/4 is the slope of the line

What is the X- Intercept

Answers

Answer:

-35,0 is the x-intercept

Step-by-step explanation:

ok i dont wanna have to explain so tell me if you want an explanation.

Answer:

ooooooooooopppppppppp

this got me all confused ^^'
appreciate it if you help me....but if you cant thats ok! Have a great day either way^^​

Answers

Answer:

im confused as you are

Step-by-step explanation:

look so what it is saying its that theres 22 in total. 14 already have a sibling and 18 have a pet. 22-14 is 8 and 22-18 is 4. how are you supposed to find the rest of them who have both?

Answer:

Answer is 10

Step-by-step explanation:

Attatchment

solve the inequality 9-12>-13
A. q>1
B. q>-1
C. q>25
D. q>-25

Answers

Answer:

C

Step-by-step explanation:

Evaluate the expectations for the given value of x
3x-2forx=2

Answers

3x - 2 when X = 2
= 3(2) - 2
= 6 - 2
= 4
So, in conclusion, the answer to this question is 4.

What is the value of x?
24
36
12
Select one:
O a. 8
O b. 12
O c. 6
O d.

Answers

Answer:

x = 12

Step-by-step explanation:

Help. What is the length of EF in the right triangle below.

Answers

Answer:

A

Step-by-step explanation:

Since the triangle is right use Pythagoras' identity to find EF

The square on the hypotenuse is equal to the sum of the squares on the other two sides, that is

EF² + DF² = DE² ← substitute values

EF² + 12² = 18², that is

EF² + 144 = 324 ( subtract 144 from both sides )

EF² = 180 ( take the square root of both sides )

EF =  → A

Wish you luck on that

Hi! during this pandemic it's kind of hard to learn math over the screen. no one is willing to help since my teachers are busy and my mom is confused. I Don't have friends to go to who could help me..So i'm hoping someone here could help! ...!!i cropped it so you could see better..Thanks!

Answers

Answer:

a) c=33.5

I'll try my best to explain and help you out here! online school sucks, I hope you get the hang of it soon!

Step-by-step explanation:

Simplify both sides of the equation.

c(5)=(35.5)(5)−10

5c=177.5+−10

5c=(177.5 + −10) (Combine Like Terms)

5c=167.5

Divide both sides by 5.

5c/5 = 167.5/5

c=33.5

I'm not entirely sure about the second question but I'll try to figure it out and let you know!

Q8.
On a farm
one-fifth of the animals are goats
25% of the animals are sheep
the rest of the animals are cows.
What fraction of the animals on the farm are cows?
Give your answer in its simplest form.

Answers

Answer:

28/5

Step-by-step explanation:

Pls help and show workings due ASAP

Answers

The answer is either A or C
actually it's D
29 + 5 = 34/2 = 17
7 - 15 = -8/2 = -4

If x = 2y + 3 and 4x – 5y = 9, what is the value of y?

Answers

Answer:

Step-by-step explanation:

y=-1 ans.

x=2*-1=3

x=-2+3

x=1 ans.

Proof:

4*1-5*-1=9

4+5=9

9=9

Answer:

9

Step-by-step explanation:

what is−1/2−(−5/9) as a fraction in simplest form

Answers

Answer:

1/18

Step-by-step explanation:

-9/18 + 10/18

Answer:

1/18

Step-by-step explanation:

Work out the volume of this sphere.
Give your answer to 1 decimal place.
4.7 cm

Answers

Answer:

434.9 cm³

Step-by-step explanation:

Volume of a sphere: 4/3πr³

Substitute the information to find the volume.

4/3π(4.7)³ = 434.9

Your baseball team has won 6 game and lost 4 game.If the the team dosen;t lose anymore games how many games must the team win to have a win:the ration is 2:1 ? Explain your answer

Answers

Answer: 2 more games

Step-by-step explanation:

From the question, we are informed that a baseball team has won 6 game and lost 4 game.

We are further told that the team dosent lose anymore games and want to know the number of games they must win to have a ratio of 2:1.

Since they have lost 4 games and need a ratio of 2:1. This means we have to multiply the game lost by 2. This will be: = 4 × 2 = 8 games.

Since they've won 6 games already, they'll need to win = 8 - 6 = 2 games more.

The price of a pair of shoes increase from $65 to $68 What is the percent increase to the nearest percent ​

Answers

Answer:

4.61% increase (round up as needed)

Step-by-step explanation:

Subtract the smaller amount from the larger to find the dollar difference

[tex]68-65=3[/tex]

Then divide the difference by the original amount

[tex]3/65=0.0461[/tex]

Move the decimal point over two spaces (multiply by 100) to get your percentage

0.0461=4.61%

Round up as needed.

ZX and zy are supplementary angles. zy measures 33°.what is the measure of ZX

Answers

Answer:

147°

Step-by-step explanation:

supplementary angles equal to 180° in total so...

180 - 33 = 147

Solve each equation with the quadratic formula. (Show work please)

Answers

Answer:

Let b=x

Such that b^2 =8b-8 will x^2=8x-8

Using the almighty quadratic formula

x1={-b+sqrt (b^2-4ac)}/2a

x2={-b-sqrt (b^2-4ac)}/2a

From the question

a=1

b=8

c=-8

x1={-8+sqrt (8^2-4(-8))}/2

x1=(-8+5.66)/2

x1=-1.17

x2={-8-sqrt (8^2-4(-8))}/2

x2=(-8-5.66)/2

x2=-6.83

:.(x1,x2)=(-1.17,-6.83)

Step-by-step explanation:

Michael reads 12 pages of a book in 18 minutes, 8 pages in 12 minutes, and 20 pages in 30 minutes. I’d this a proportional relationship? What does it represent? Write an equation to represent this situation.

Answers

Answer:

Y= 1.5x

Step-by-step explanation:

What you would do is divide all of the minutes by the amount of pages to find how long for each rate for one page. (ex. 18/12, Michael reads 1 page in 1.5 minutes. 12/8, Michael reads 1 page in 1.5 minutes. 30/20, Michael reads one page in 1.5 minutes) Therefore, yes it is proportional, and the equation is y=1.5x (there is no y intercept)

I hope this will help

Two competing gyms each offer childcare while parents work out. Gym A charges $9.00 per hour of childcare. Gym B charges $0.75 per 5 minutes of childcare. Which comparison of the childcare costs is accurate?


Gym B charges $1.05 less per hour than Gym A.

Gym B charges $1.50 less per hour than Gym A.

Gym B charges $5.25 less per hour than Gym A.

Gym B and Gym A charge the same hourly rate for childcare.


someone, please help !!

Answers

Answer:

gym a and b charge the same

Step-by-step explanation:

5 mins x 12 = 60 mins o.75 x 12 = 9

Answer:

Gym B and Gym A charge the same hourly rate for childcare.

Step-by-step explanation:

$0.75 per 5 minutes

$9.00 per haur

5 × 12 = 1 haur

$0.75 × 12 =$9.00

All squares are also rhombuses.
True or false

Answers

Answer:

true

Step-by-step explanation:

Cause if you draw a square and turn it, its gone be a rhombus

Answer:

True

Step-by-step explanation:

Question 11
<
Simplify the expression x^1/5 • x^5/2 Assume x > 0.
A) The answer can be written in the form x^a where
the exponent a is: Note: enter the exponent as a reduced fraction or integer.

B) The answer can be written in the form 1/x^b where the exponent b is:
Note: enter the exponent as a reduced fraction or integer.

Answers

Answer:

A. x^27/10

B. 1/x^-27/10

Step-by-step explanation:

Mathematically, if we have the same base, we simply add up the index

Thus, we have that;

x^1/5•x^5/2 = x^(1/5 + 5/2) = x^(2 + 25)/10 = x^27/10

A) In the first form, we have that;

x^27/10

a = 27/10

B) We simply negate what we have above in terms of the index according to the indices law below;

a^b = 1/a^-b

Hence, we have that;

1/x^-27/10

PLEASE HELP!
which expression is equivalent to 4(3+5) - 3.9%?
C 1220-54

Answers

Answer: 30.752

Step-by-step explanation:

Pls help me. It due ASAP...

Answers

Answer:

b

Step-by-step explanation:

A graduated cylinder is filled with 20ml of water. Then, an 8g marble is dropped into the cylinder, causing the volume to change to 24ml. What is the density of the marble?

Answers

Answer:

The density of the marble is 2,000 kg/m³

Step-by-step explanation:

The given parameters for finding the density of the marble are;

The volume of water in the graduated cylinder, v₁ = 20 ml

The mass of the marble dropped into the graduated cylinder, m = 8 g

The new volume of the cylinder after the 8 g marble is dropped into the cylinder, v₂ = 24 ml

Therefore, the volume of the marble, v = v₂ - v₁

Substituting the known values gives;

The volume of the marble, v = 24 ml - 20 ml = 4 ml

Density, ρ = Mass, m/(Volume, v), the units of density is kg/m³

Therefore, the density of the marble, [tex]\rho _{marble}[/tex], is given as follows;

[tex]\rho _{marble}[/tex] = m/v = (8 g)/(4 ml) = 2 g/ml

1 g/ml = 1 kg/l = 1,000 kg/m³

∴ [tex]\rho _{marble}[/tex] = 2 kg/l = 2,000 kg/m³.

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