can someone help me with this question 2x+3=15 is x

Answers

Answer 1

Answer:

x=6

Step-by-step explanation:

2x+3=15

subtract 3 on both sides

2x=12

x=6

Answer 2
The answer is 6, because 15-3 is 12, and to get 12, you would have to do 2•6, so (2•6)+3=15. So, x=6.

Related Questions

Given: O ∈ AB , ON is ∠ bisector of ∠AOC, OF is ∠ bisector of ∠COB, m∠FOB=70°. Find: m∠AON

Answers

Answer:

AOC = 20 degrees

Step-by-step explanation:

We know that FOB is 70 degrees, and COF is 90 degrees. So just add 70+90 and get 160 degrees. Then you subtract that from AOB which is 20 degrees.

PLEASE HELP IM TIMED

Jessica and Jonathan need to figure out how much to charge for their lemonade. First, they need to know how much they spent on ingredients! As seen in the table, they bought 6 containers of lemon juice, 2 packages of sugar, and 2 bottles of water.

What is the total amount of money they spent?

1) $12.90

2) $16.34

3) $18.75

4) $20.16

Answers

Answer:

20.16

Step-by-step explanation:

add

Answer:

20.16

Step-by-step explanation:

Got it on Freckle

The brown family has 5 liters of lemonade. Each liters of lemonade weighs 1 kilogram. At the end of the day they have 290 grams of lemonade left. How many grams of lemonade did they drink.

Answers

Answer:

4710grams of lemonade.

Step-by-step explanation:

Step one:

given data

the brown family has 5 liters of lemonade that weighs 1 kg per liter

this implies that they have 5kg of lemonade.

convert 5kg to grams we have 5*1000= 5000grams

(because 1000g is equal to 1kg)

Step two:

if at the end of the day there was 290grams left, then they drank

=5000-290

=4710

They drank 4710grams of lemonade.

Can someone helllllppp me on 5 more problems like this n I’ll give u 20 dollars in cashapp plzzz I’m being serious

Answers

Answer:

y = x - 5

Step-by-step explanation:

[tex] \rm Solve \: for \: y: \\ \rm \longrightarrow x - y= 5 \\ \\ \rm Subtract \: x \: from \: both \: sides: \\ \rm \longrightarrow x - y - x = 5 - x \\ \\ \rm \longrightarrow -y = 5 - x \\ \\ \rm Multiply \: both \: sides \: by \: -1: \\ \rm \longrightarrow - y \times ( - 1) = (5 - x) \times ( - 1) \\ \\ \rm \longrightarrow y = x - 5[/tex]

A’ is the image of A in a regular pentagon. What is the angle of a clockwise rotation, in degrees, about the origin that transfers A to A’

Answers

Answer:

B. 144°

Step-by-step explanation:

have a nice day.

As an estimation we are told 5 miles is 8 km.
Convert 30 miles to km.

Answers

Answer:

48km

5miles = 8km

×6 = ×6

30miles= 48km

The janitor at a school discovered a leak in a pipe. The janitor found that it was leaking at a rate of 18 fl oz per . How fast was the pipe leaking in gallons per ​?

Answers

Answer:

0.140625 gallons per

Step-by-step explanation:

By doing a quick search we discover that there are 1 fl oz is equal to 0.0078125 gallons. Therefore, in order to find out how fast the pipe was leaking in gallons, we simply multiply the rate of fl oz by the number of gallons for every fl oz like so...

18 fl oz  *  0.0078125 gallons =  0.140625 gallons

I need help with the equation inserted in the picture.

Answers

Answer:

x = 4

-4x+21 => 5

Step-by-step explanation:

The given triangle in the picture is isosceles triangle which means that two sides of the triangle are equal.

So,

[tex]Side\ 1: -4x+21\\Side\ 2: -4x+21\\Side\ 3: 6\\Perimeter = 16[/tex]

Now

Putting all the values in equation for perimeter

[tex]Side\ 1+Side\ 2+Side\ 3 = 16\\-4x+21 -4x+21 + 6 =16\\-8x +48 = 16\\-8x = 16-48\\-8x = -32\\\frac{-8x}{-8} = \frac{-32}{-8}\\x = 4[/tex]

Putting x = 4 in side 1

[tex]=-4(4)+21\\= -16+21\\=5[/tex]

Hence,

x = 4

-4x+21 => 5

3x^2y^2/6xy
please answer asap​

Answers

Answer:

-3xy • (xy - 2)

Step-by-step explanation:

if ur supposed to be simplyfying it that should be the answer i think

Answer:   3xy⋅(xy−2) Your Welcome:)

:

draw a rough sketch of a closed curve that is not a polygon

Answers

Answer:

I have inserted a photo.

Hope this helps :D

The following table shows the salary of 7 people in an office last year.

Name Income
Andy £13500
Bevan £27500
Cheryl £13750
Deva £79000
Elliott £19250
Frankie £27500
Grace £15000
a) Work out the mean income to 2 DP.
b) Deva was given a large bonus for 30 years service.
Excluding Deva's income, what was the mean income for the remaining 6 workers to 2 DP?

Answers

Answer:

a. Mean = £27928.57

b. Mean without Deva's income = £19416.67

Step-by-step explanation:

The mean is calculated by dividing the sum of values by number of values. Given 7 values will be used to calculate mean.

So,

Number of values = n = 7

Now,

[tex]Mean = \frac{Sum}{No.\ of\ values}\\=\frac{13500+27500+13750+79000+19250+27500+15000}{7}\\=\frac{195500}{7}\\=27928.5714..[/tex]

Rounding off to two decimal places

Mean income = £27928.57

Now we have to calculate mean without Deva's income so the number of values will be 6 and the sum will be:

[tex]Sum = 195500-79000 = 116500[/tex]

The mean without Deva's income is:

[tex]Mean = \frac{116500}{6} = 19416.6666..[/tex]

Rounding off to 2 DP

Mean = £19416.67

Hence,

a. Mean = £27928.57

b. Mean without Deva's income = £19416.67

Given f(x) = -2x³ + x² - 2 find f(1) -3 -1 1 3

Answers

Answer:

-3

Step-by-step explanation:

Substitute -1 into the expression for every place of x, and evaluate it.

In a flash of sheer brilliance, Stefan invents a time machine! The machine uses a small nuclear reactor to generate the electricity it needs to travel back in time. There is a proportional relationship between how many years Stefan wants to travel back in time, x, and how much electricity (in megawatts) his time machine needs, y . ​

Answers

Answer:

[tex] y = x [/tex].

Step-by-step explanation:

Equation to represent the proportional relationship between years (x) and megawatts (y) is represented as [tex] y = kx [/tex].

Where k = constant of proportionality, which is y/x.

To find k, we can use the coordinates of any point on the line. Let's use (4, 4).

k = y/x = ⁴/4 = 1

Substitute k = 1 into [tex] y = kx [/tex].

✅Equation representing the relationship would be:

[tex] y = (1)x [/tex].

[tex] y = x [/tex].

Samir's curtain company is making curtains for a local hotel. He wants each curtain to be 36 inches long. At the fabric store, fabric is sold by the foot. If Samir's curtain company wants to make 72 curtains, how many feet of fabric will he need?

Answers

Answer:

Which two elements of drama divide the play and indicate shifts in location or scenery?

dialogue

act

character

monologue

scene

Step-by-step explanation:

NEED HELP ASAP THANKS

Answers

Answer:

D.  7 1/2

Step-by-step explanation:

-3 divided by  (-2/5) = 7 1/2

The answer is D. 7.5 which is 7 1/2

Plz help I’m desperate

Answers

Answer:

Step-by-step explanation:

f(-2)=5

Since Pemdas is used, taking care of that x is squared before multiplying -3 to make sure you don't mess up the signs.

Enjoy your day love <3

Find the slope of the following graph 1) 0 2) No slope 3) 1

Answers

Answer:

it is 0

Step-by-step explanation:

hope it helps <3

Using the slope concept, it is found that this graph has a slope of 0.

Given two points (x,y) on a linear graph, the slope is given by the change in y divided by the change in x, that is:

[tex]m = \frac{\Delta_y}{\Delta_x}[/tex]

In this question, two of the points are: (1, 1.5) and (2, 1.5). Then, the slope is:

[tex]m = \frac{\Delta_y}{\Delta_x} = \frac{1.5 - 1.5}{2 - 1} = \frac{0}{1} = 0[/tex]

This graph has a slope of 0.

A similar problem is given at https://brainly.com/question/5029023

la razón entre dos triángulos es 4. Los lados del primer triángulo miden 6cm, 9cm, 12cm, ¿Cuáles son las
medidas del segundo triángulo?

Answers

Answer:

24cm, 36cm y 48cm

Step-by-step explanation:

Tu necesitas multiplicar cada lado por 4 porque 4 es el factor de escala.

(Lo siento si mi explicacion es mala, no se mucho Español, entonces no puedo explicar muy bien)

I need help with this prob

Answers

3x +2=180//////////////////

ax = bc - c solve for x

Answers

Answer:

X = c - b/a

Step-by-step explanation:

Answer:

x=bc/a - c/a

You simplify it like you would any equation, only difference is it does not have numbers.

8(x+2) when x=6 show how the answer is the answer them put = the answer thanks

Answers

Answer:

64

Step-by-step explanation:

Substitute 6 in for x in the equation to get 8(6 + 2). You need to follow the order of operations and solve what is in the parentheses first. 6 + 2 is 8, so that leaves you with 8(8). 8 x 8 is 64. 64 = the answer.

HELP ME WITH THIS I'LL GIVE THE BRAINLIEST.

For items 6 to 9, use illustration on long division that follows:

6. Which is the dividend?

A. 5x + 5
B. 5x -5
C. 25x2 - 50x +25
D.O
7. What is the remainder?
A. 5x + 5
B.X + 5
C. -5
D.O
8. Which is the quotient?
A. 5x + 5
B. 5x -5
C. 5x² + 14x-24
D.O
9. What is the process used to obtain the 2nd line?
A. Multiplying 5x by (5x-5)
C. Dividing 5x by (5x -5)
B. Adding 5x by (5x-5)
D. Subtracting 5x by (5x -5) ​

Answers

Answer:

6) A. 5x+5

7) D. 0

8) A. 5x+5

9) I'm not sure sorry

Step-by-step explanation:

What are all them pls i am stuck

Answers

Answer:

6. is proportional, 7. is not proportional, 8. is not proportional

Step-by-step explanation:

Answer: 7 is Portional

HELP WILL GIVE BRAINLIEST

Answers

Answer:

A. 2000 square inches

B. 53.1 square inches

Log3(2)+log3(8)
Pls help asap

Answers

Answer:

[tex]log_{3}[/tex] 16

Step-by-step explanation:

Using the rule of logarithms

logx + logy = log(xy), then

[tex]log_{3}[/tex]2 + [tex]log_{3}[/tex]8

= [tex]log_{3}[/tex](2 × 8)

= [tex]log_{3}[/tex] 16

It takes 1 minute for a certain amount of potassium bromide (KBr) to dissolve in 100 grams of water at 25 °C.

Which of the following will most likely happen if the same sample of potassium bromide is dissolved in 100 grams of water at 100 °C?

The sample will dissolve in exactly 1 minute.
The sample will dissolve in less than 1 minute.
The collision between particles of the sample will decrease.
The collision between particles of the sample will remain constant.

Answers

Answer:

The sample will dissolve in less than one minute

Step-by-step explanation:

Which of the equations below represents a line parallel to the y-axis?
OA.
x=-Y
OB.
X= 4
O C. X= 4y
OD.
x= y

Answers

Answer: x=4
Explanation:

Point R on the coordinate grid below shows the location of a car in a parking lot. A second car needs to park 6 units above R to leave room for a utility truck. What are the coordinates of the location of the second

Answers

Answer:

[tex]R' = (-4 , 4)[/tex]

Step-by-step explanation:

Given

See attachment for the grid coordinate

From the attachment, we have that:

[tex]R = (-4,-2)[/tex]

Required

Determine the coordinates of the second truck

Represent the position with R'

From the question, we understand the position of R' is 6 above R

When a point (a,b) is moved n point above, the new point becomes (a, b + n)

So:

[tex]R = (-4,-2)[/tex]

When moved 6 points above becomes:

[tex]R' = (-4 , -2 + 6)[/tex]

[tex]R' = (-4 , 4)[/tex]

Hence, (-4,4) answers the question

An item that originally cost $56.00 is on sale for 20% off. What is the sale price?

Answers

Answer:

44.8

Step-by-step explanation:

this is the answer

Answer:

Step-by-step explanation:

Given original cost of item =56

On sale 20%off

20%of 56

= 20/100×56

=11.2

The sale price =56-11.2

= 44.8

15 POINTS WILL GIVE BRAINLIEST
Find the range of the following piecewise function.
f(x){x^2+2 if -5≤x<3}
f(x){x-4 if 3≤x<7}
[27,3)
(-22,3]
(27,3]
[-22,3)

Answers

Answer:

[27,3) i think

Step-by-step explanation:

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