Please I am on a timer

Answer:

the original volume is 4.0L

Step-by-step explanation:

Step one:

given data

V1= ?

T1=  52 °C

V2= 6.1L

T2=  79° C

Step two

applying the volume temperature relationship, which is

V1/T1= V2/T2

substituting we have

V1/52= 6.1/79

cross multiply we have

52*6.1= V1*79

317.2= 79V1

divide both sides by 79

V1= 317.2/79

V1=4.0L

Answer:

=5x^2y+15

Step-by-step explanation:

16x^0+5x^2*y-1=

16x0+5x2y−1

Combine Like Terms:

16+5x2y+−1

=(5x2y)+(16+−1)

=5x^2y+15

Hope this helps!!! If you ever need more help just ask in the comments or somewhere.

Answer:

X=4 Y= -5

Step-by-step explanation:

Answer:

Q' (-10, -5)

Step-by-step explanation:

Multiply each coordinate by the scale factor.

-2 · 5 = -10

-1 · 5 = -5

Therefore, Q' (-10, -5).

Answer:

Choice 2

Step-by-step explanation:

Ask a friend or older sibling, they always have the answer (Not really)

Answer:

180 pages in 2 hours

225 pages in 150 minutes

210 pages in 2 hours 20 minutes

Step-by-step explanation:

135 pages : 90 minutes

= 135/90

= 3/2

= 3 : 2

180 pages : 2 hours

180 pages : 120 minutes

= 180/120

= 3/2

= 3:2

60 pages : 30 minutes

= 60/30

= 2/1

= 2:1

108 pages : 2 1/2 hours

108 pages : 180 minutes

= 108/180

= 18/30

= 3/5

= 3:5

150 pages : 1 hour

150 : 60

= 150/60

= 10/6

= 5/3

= 5:3

225 pages : 150 minutes

= 225/150

= 9/6

= 3/2

= 3:2

210 pages : 2 hours 20 minutes

210 pages : 140 minutes

= 210/140

= 3/2

= 3:2

Answer:

15%

Step-by-step explanation:

Given that:

Number of people who went to swimming pool in the first week = 1120

In second week, there are 100 fewer people, so

Number of people who went to swimming pool in the second week = 1020

In third week, there are 140 more people, so

Number of people who went to swimming pool in the third week = 1160

In fourth week, there are 208 fewer people, so

Number of people who went to swimming pool in the fourth week = 952

To find:

Percentage decrease in the number of people who went to the pool over the four weeks?

Solution:

Initial value = 1120

Final value = 952

Decrease in the value = Final value - Initial value

Decrease in the value = 1120 - 952 = 168

To find the percentage, we need to take the initial value in the consideration.

Therefore, percentage decrease is:

[tex]\dfrac{Decrease}{Initial\ value}\times 100[/tex]

[tex]\Rightarrow \dfrac{168}{1120}\times 100\\\Rightarrow \bold{15\%}[/tex]

Answer:

Step-by-step explanation:

Answer:

the second one

Step-by-step explanation:

Answer:

384.3

Step-by-step explanation:

Answer:

(3, 0)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define Systems

3x - y = 9

2x - y = 6

Step 2: Rewrite Systems

2x - y = 6

Step 3: Redefine Systems

3x - y = 9

y = 2x - 6

Step 4: Solve for x

Substitution

Step 5: Solve for y

Step 6: Check

Graph the systems to verify the solution set (3, 0) is the solution.

The solution set to the systems would be where the 2 lines intersect.

We see that the intersection point is x-intercept (3, 0).

∴ (3, 0) is the solution set to the systems of equations.

isolate and solve for y

Step-by-step explanation:

subtract y from both sides than divide the x values from bothe sides

Answer:

-2x+5

Step-by-step explanation:

Bro the answer are wrong there should on more options of -2x+5

These is explainetation

-1/3 × 6x + -1/3 × 15 ( because -1/3 is multipled to whole bracket)

-2x + 5

Answer: 4.82 km

Step-by-step explanation:

You went for a run on Monday.

You then went on a run on Tuesday as well. On this day you ran 2.41 km and it is said that you ran the same distance on both days which means you ran for 2.41 km on Monday as well.

The total distance you ran is therefore:

= 2.41 + 2.41

= 4.82 km

Answer: Its the last one trust me

Step-by-step explanation:

______________________________

 - We do this because we need to get x alone and separate from fraction from.

Equation at the end of Step 1:

 - We do this to cancel out an extra numbers in order to get only x alone with 1 number on the opposite side of the equal.

______________________________

There is a 2 in 12 chance of drawing a penny

Step-by-step explanation:

Answer: 2/12

Step-by-step explanation:

There are 12 coins all together, and 2 pennies which means there is a 2/12 chance to draw a penny. Then they replace the penny and draw another time, so by replacing the penny the probability doesn't change and there is still a 2/12 chance of drawing a penny.

Answer:

nearly 24%

Step-by-step explanation:

85=350×a/100

85=3.5a

a=85/3.5

nearly 24%

Answer:

20% x 5= 100%

35 x 5= 175

she has a total of 175 cupcakes

Answer:

Slope = 2

Step-by-step explanation:

Answer:

is this what youre looking for ?

Step-by-step explanation:

Input Data :

Point A  ( x A , y A )  = (3, 2)

Point B  ( x B , y B )  = (7, 10)  

Objective : Find the slope of a line that passes through points A and B.

Formula : Slope  m =  y B − y A /x B − x A

Solution: Slope m = 10 − 2 /7 − 3  = 8 4

m = 2

Answer:

x=3

Step-by-step explanation:

The equation here is x=3. If it were y=3, then it would be a horizontal line.

Answer:

The coordinates of the Midpoint of AB will be: (1/2, 5)

Step-by-step explanation:

Given the points

Finding the midpoint between (-2, 6) and (3, 4)

[tex]\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)[/tex]

[tex]\left(x_1,\:y_1\right)=\left(-2,\:6\right),\:\left(x_2,\:y_2\right)=\left(3,\:4\right)[/tex]

[tex]M.P=\left(\frac{3-2}{2},\:\frac{4+6}{2}\right)[/tex]

        [tex]=\left(\frac{1}{2},\:5\right)[/tex]

Therefore, the coordinates of the Midpoint of AB will be: (1/2, 5)

Answer: I’m pretty sure the answer is D. −x^2 + 3x − 4

Step-by-step explanation:

Answer:-x^2 + 3x - 4

Step-by-step explanation:

Answer:

x>3

Step-by-step explanation:

4 • (7 - x) -  16  < 0

3.1     Pull out like factors :

12 - 4x  =   -4 • (x - 3)

-4 • (x - 3)  < 0

4.1    Divide both sides by  -4

4.2      Add  3  to both sides

            x > 3

4.3      Inequality plot for

        -4.000 X  + 12.000  >  0

Answer:

Here, for example, is square inch pricing, using a multiplier of 2.5 (ie, $2.50 per square inch):

4×4 inches = 16 square inches x 2.5 = $40

8×8 inches = 64 square inches x 2.5 = $160

16×16 inches = 256 square inches x 2.5 = $640

24×24 inches = 576 square inches x 2.5 = $1,440

32×32 inches = 1,024 square inches x 2.5 = $2,560

I don’t know about you, but $40 seems awfully small price for a painting by someone who commands $2,560 for a 32×32 canvas.

Here are the same canvas sizes using linear inch pricing, using a multiplier of 20 (ie, $20.00 per linear inch) — as you can see, the difference in price feels a lot less out-of whack:

4+4 inches = 8 linear inches x 20 = $160

8+8 inches = 16 linear inches x 20 = $320

16+16 inches = 32 linear inches x 20 = $640

24+24 inches = 48 linear inches x 20 = $960

32+32 inches = 64 linear inches x 20 = $1,280

Neither of these pricing methods is “right” or “wrong,” but once you determine your method and your multiplier, charging by size can be a very helpful way to eliminate the guesswork, and feel confident about your pricing.

Different Pricing for Different Media?

One possible modifier to your size-based pricing structure is the media you paint with. If you only paint watercolors, or only paint oils, there’s no problem, but if you paint both on canvas and on paper, as I do, it gets a little tricky.

For whatever reason, paintings on paper tend to sell for less than paintings on canvas — even though they require framing, which is an added expense. In my case, if I were to pay to have a piece framed, my costs become much higher for a work on paper than for a canvas painting! What’s an artist to do?

(And remember that pricing your prints is an entirely different topic.)

I don’t have a final answer to this question, except to refer you to the item below…

Step-by-step explanation:

Answer:

Here, for example, is square inch pricing, using a multiplier of 2.5 (ie, $2.50 per square inch):

4×4 inches = 16 square inches x 2.5 = $40

8×8 inches = 64 square inches x 2.5 = $160

16×16 inches = 256 square inches x 2.5 = $640

24×24 inches = 576 square inches x 2.5 = $1,440

32×32 inches = 1,024 square inches x 2.5 = $2,560

I don’t know about you, but $40 seems awfully small price for a painting by someone who commands $2,560 for a 32×32 canvas.

Here are the same canvas sizes using linear inch pricing, using a multiplier of 20 (ie, $20.00 per linear inch) — as you can see, the difference in price feels a lot less out-of whack:

4+4 inches = 8 linear inches x 20 = $160

8+8 inches = 16 linear inches x 20 = $320

16+16 inches = 32 linear inches x 20 = $640

24+24 inches = 48 linear inches x 20 = $960

32+32 inches = 64 linear inches x 20 = $1,280

Neither of these pricing methods is “right” or “wrong,” but once you determine your method and your multiplier, charging by size can be a very helpful way to eliminate the guesswork, and feel confident about your pricing.

Different Pricing for Different Media?

One possible modifier to your size-based pricing structure is the media you paint with. If you only paint watercolors, or only paint oils, there’s no problem, but if you paint both on canvas and on paper, as I do, it gets a little tricky.

For whatever reason, paintings on paper tend to sell for less than paintings on canvas — even though they require framing, which is an added expense. In my case, if I were to pay to have a piece framed, my costs become much higher for a work on paper than for a canvas painting! What’s an artist to do?

(And remember that pricing your prints is an entirely different topic.)

I don’t have a final answer to this question, except to refer you to the item below…

Step-by-step explanation:

Answer:

(0,0)

Desmos graphing calculator is a great way to enter the formula of a circle and see a visual example.

Answer:

Three or nine

Step-by-step explanation:

Answer:

1 is missing value..... .....

Answer:

17

Step-by-step explanation:

6x7= 42

42 divided by 2 = 21

21 - 4 = 17

answer = 17

Answer:

I would assume you would use PEMDAS? thats what I would use

Answer:

Solve the parenthesis

Step-by-step explanation:

In the order of operations (PEMDAS), you would solve what's in the parenthesis first. So you would add 5 and 4, then multiply that by 3 to get the correct answer. Hope that helps!

Answer:

12.6

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

since triangles are proportional by 2:1, then:

16/2=3x-4

8=3x-4

3x=12

x=4