Mathematics College

find the value of y. 7y + y - 2y =18​

Find The Value Of Y. 7y + Y - 2y =18

Answers

Answer 1

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

y=3

Step-by-step explanation:

if you are to put this on a graph the would be Linear

Related Questions

Two numbers have a sum of 24
and a product of 143. What is the
smaller number?

Answers

Answer:

The smaller number is 11.

Step-by-step explanation:

11 + 13 = 24

11 x 13 = 143

Hope this helps!

The smaller number is 11

The equation for the circle below is 2 + y2 = 64. What is the length of the
circle's radius?
O A. 2
8 d
Ο Ο
B. 64
C. 8
O Ο Ο
D. 9
E-1
OF 25

Answers

Your answer would be B. 64


0.43
decimal place(s)
X 0.2
decimal place(s)
0.086
decimal place(s)

Answers

if you’re checking to see if this is correct, it is!

I hope this helps! Let me know if you have any questions! Good luck on the rest of your assessment!

Mark this as Brainliest if you get a chance:)

I will mark brainlist please help!!

- dilation (lesson)

1) in a dilation of a figure, the distance between two consecutive vertices does not change

• true

• false


2) the coordinates of the vertices of a triangle JKL are J (4,8) K (8,8) L (4,2). Find the coordinates of the vertices of the image after a dilation by K = 0.25


• J (2,1) K (2,2) L (1,2)

• J (-2,1) K (4,2) L (1,0.5)

• J (1,2) K (2,2) L (1,0.5)

Answers

I’ve never see the truth about coks so it’s 27 inches for sure if it was all the same as2,2 743+77482=747474

a little mermaid can't swim 12 miles downstream in the same amount of time she can swim 8 miles upstream. What is the little mermaid speed's in still water if the speed of the current is 4mph

Answers

A little mermaid can't swim 12 miles downstream in the same amount of time she can swim 8 miles upstream. The little mermaid speed's in still water is: 4/5 mile per hour.

The distance of the miles can be estimated by using the formula:

distance = speed rate × time

∴

[tex]\mathbf{time = \dfrac{distance}{ rate}}[/tex]

Let the current speed be = x

In the upstream direction;

the rate = swim speed - the current speed = 4  - x

in the downstream direction;

the rate = 4 + x

∴

[tex]\mathbf{t = \dfrac{8}{4 -x}= \dfrac{12}{4+x}}[/tex]

By cross multiply;

8 (4 + x) = 12 (4 - x)

32 + 8x = 48 - 12x

8x + 12x = 48 - 32

20x = 16

x = 16/20

x = 4/5 mile per hour

Therefore, we can conclude that the little mermaid speed's in still water is 4/5 miles per hour.

Learn more about speed here:

https://brainly.com/question/22610586?referrer=searchResults

Write an equation of the line that passes through the point (3,3) and is parallel to the line y= -1/2 + 3

Answers

Step-by-step explanation:

the slope = -½

the equation :

y-3 = -½(x-3)

y-3 = -½x + 3/2

y = -½x + 3/2 +3

y = -½x + 9/2

Choose a factor pair of 36.Show how this factor pair can be found in the prime factorization of 36

Answers

Answer:

2*2*3*3

Step-by-step explanation:

https://math.answers.com/Q/How_can_you_use_prime...

A parking garage has 6 levels below ground. Each level is the same height.
Consider ground level to be 0. The depth of the the sixth level of the parking garage is −135.6 ft.
What is the depth of the first level of the parking garage?

Answers

Answer:

22.6

Step-by-step explanation:

Level of one ground = Level of last ground ÷ no of levels

- 135.6 \div 6 = 22.6−135.6÷6=22.6

What is the quotient?
-2 1/8 divided by 1 1/4
Enter your answer as a mixed number, in simplified form.

Answers

Answer:

-1.7 or 1 7/10

Step-by-step explanation:

Conversion a mixed number to a improper fraction: 2 1/8 = 2 · 8 + 1

8

= 17

8

Unary minus: -17

8

Conversion a mixed number to a improper fraction: 1 1/4 = 1 · 4 + 1

4

= 5

4

Divide: -17

8

: 5

4

= -17

8

· 4

5

= -17 · 4

8 · 5

= -68

40

= -17

10

To divide one fraction by another, invert the second fraction, then multiply.

Unit form of 13/5 divided by 4/5l

Answers

Answer:

663/20

Step-by-step explanation:

if you want simplist form its 33 3/20 or decimal its 33.15

$56 for 25 gallons or $30.05 for 15 gallons

Answers

um what do you mean by that?

what adds up to -38 but multiplies to -168

Answers

Answer:

-42 x 4

Step-by-step explanation:

it multiplies to -168 and adds up to -38

A 12.5-gallon gasoline tank is 1/8 full. How many gallons will it take to fill the tank?

Answers

Answer:

10.9375 gal

Step-by-step explanation:

Volume of the tank = 12.5 galFull = 1/8 of the tankEmpty = 1 - 1/8 = 7/8 of the tank

Volume to fill the empty part:

12.5*7/8 = 12.5 * 0.875 = 10.9375 gal

winstons family is making 4 pizza's for dinner. they have 1 over 2 of a pound of shredded cheese and put an equal amount on. rach pizza how many pounds of cheese do they put on each pizza?

Answers

Answer:

1/8

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

4 divided by 1/2

help meeee again ¾÷⅕ =

Answers

Answer:

decimal: 2.25

fraction: 9/4

Step-by-step explanation:

Answer:

Fraction: 15/4

Decimal: 3.75

Room A is 16x15x10. Room B is 12x12x8. Paint is $0.46 per square foot. How much will it cost to paint?

Answers

Answer:

Step-by-step explanation:

1633.92 toghether

PLEASE HELP ME ITS ALGEBRA THANK YOUUUU

Answers

Answer:

8 nights

Step-by-step explanation:

First, you have to find out how many centimeters she knits per night and that can be found by dividing 42 by 6

You get 7, and then you find out how many times 7 must be repeated to make 56

Therefore you get 8 nights

5.1 km/h to mph. Round to the appropriate number of significant digits.

Answers

Step-by-step explanation:

Given-

5.1 km/hr

Relation bween mph and km :-

[tex]1 \: mph = 1.609 \: km[/tex]

So,

[tex] \frac{5.1 \: km}{1 \: h} \times \frac{1 \: km}{1.609} = 3.17 \: mph[/tex]

Therefore, the answer is 3.17 mph.

Given: 3x < 3. Choose the solution set. {x | x < 1} {x | x > 0} {x | x < 0} {x | x > 1}

Answers

9514 1404 393

Answer:

  (a)  {x | x < 1}

Step-by-step explanation:

Given ...

  3x < 3

You can find the solution by dividing both sides by 3:

  (3x)/3 < 3/3

  x < 1

Written in your given notation, this is ...

  {x | x < 1}

Which statement explains why 13x−13y=−26 shares a solution with this system of equations:

10x−3y=29

−3x+10y=55

Answers

The given equation is derivable from the system of equations.

Response:

The reason why 13·x - 13·y shares a solution with the given system of equation is because -13·x - 13·y equals 55. I can subtract -3·x + 10 from the left side of 10·x - 3·y = 29, and subtract 55 from its right side. Subtracting equivalent expressions from each side of an equation does not change the solution of the equation.

Method by which the relationship between the equations was determined

Given:

The system of equation is presented as follows;

[tex]\begin{cases} \mathbf{10 \cdot x - 3 \cdot y} = 29...(1) & \text{ } \\ \mathbf{-3 \cdot x + 10 \cdot y} = 55...(2) & \text{ } \end{cases}\\[/tex]

Therefore, by subtracting equation (2) from equation (1), we have;

(10·x - 3·y) - (-3·x + 10·y) = 29 - 55 by subtracting equivalent expressions

13·x - 13·y = 29 - 55 = -26

13·x - 13·y = -26, which is the given equation

Given that the operation performed on equation (1) and (2) is the

subtraction of equivalent expressions, we have, that the solution for the

given equation, 13·x - 13·y = -26 is the same as the solution for given

system of equations.

The reason why 13·x - 13·y = -26 shares a solution with the system of equations based from the given options in a similar question is therefore;

D. because -3·x + 10·y is equal to 55, I can subtract -3·x + 10·y from the left side of 10·x - 3·y = 29 and subtract 55 from its right side. Subtracting equivalent expressions from each side of an equation does not change the solution to the equation

Learn more about simultaneous equations here:

https://brainly.com/question/10724274

What is the sum of 3/7 + 1/3

Answers

Answer:

16/21

Step-by-step explanation:

1) Find the least common denominator (LCD) of 3/7,1/3. In other words, find the Least Common Multiple (LCM) of 7,3.

LCD=21

2) Make the denominators the same as the LCD

[tex]\frac{3*3}{7*3} +\frac{1*7}{3*7}[/tex]

3) Simplify. Denominators are now the same.

[tex]\frac{9}{21} +\frac{7}{21} \\[/tex]

4) Join the denominators

[tex]\frac{9+7}{21}[/tex]

5) Simplify

[tex]\frac{16}{21}[/tex]

Answer:

[tex]{ \tt{ \frac{3}{7} + \frac{1}{3} }} \\ \\ = { \tt{ \frac{(3 \times 3) + (7 \times 1)}{21} }} \\ \\ = { \tt{ \frac{9 + 7}{21} }} \\ \\ = \: \dashrightarrow \: { \tt{ \frac{16}{21} }}[/tex]

solve inequality (i need gelo with this )

Answers

Answer:

Interval Notation : ( -3, ∞)

Step-by-step explanation:

graph:

In a hand of cards, the ratio of black cards to red cards was 5 to 3. If the hand contained 15
black cards, which of the following proportions could be solved to find the number of red
cards?

Answers

Answer:

5:3 =  15:x

the answer would be 15 black cards to 9 red cards

Step-by-step explanation:

The three paths intersect in pairs at the points A, B, and C.

Answers

Answer:

Not a complete question... Sorry

You have a bag containing 3 red, 7 green, and 6 blue pens. you choose 2 pens at random. find the probability of picking a red and blue pen with replacing.​

Answers

Answer:9/16

Step-by-

its 9/16 because in total there 16 pens so the  the probabillty of getting a red  and blue pen is combined the amount there is and you put the total number  of pens as the denominator


1) Convert 0.469 dam to cm.

Answers

the answe is 469 CM!

A line is 4.5” long is divided into 6 equal parts. How long is each part?

Answers

Answer:

0.75"

Step-by-step explanation:

4.5÷6

please mark me brainliest

janelle earns $9 an hour and works 25 hours per week. 26% of her pay goes towards taxes. she is hoping to buy her first car 8 months from now for $3,200. Write a smart goal for janelle so she will know how much money to set aside each month in order to reach her goal.

Answers

Answer:

25

Step-by-step explanation:

What is the answer to 0.2x10=

Answers

0.2 × 10 = 2

u can check a calculator

Please help please help please help please help

Answers

9514 1404 393

Answer:

  (c)  factoring and the zero-product principle

Step-by-step explanation:

Factoring is always an efficient method of solving a quadratic, if it has nice integer factors that can be easily identified. Here, the two prime factors of 35 have a sum of 12, so the factored form is easily found to be ...

  (x +5)(x +7) = 0

This basically shows you the solutions are x=-5 and x=-7 "by inspection" in one step.

By contrast, the quadratic formula has 4 multiplications, a division, a square root, and 3 additions. That's a significant amount of arithmetic to get to the answers.

Factoring is the most efficient way to solve this quadratic.

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