1.0 liter of a gas at standard pressure and pressure is compressed to 473ml. What is the new pressure of the gas?

Answers

Answer 1

Answer: If we assume that T does not change, then PV = k.

If this is true, then P1V1 = P2V2 (Boyle's Law)

P1 = 1 atm (standard pressure)
V1 = 1 L
P2 = ?
V2 = .473L

P2 = 2.11 atm

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I am an array made with 40 tiles I have an odd number of rows and an even number of tiles in each of my rows the number of my rows plus the number of tiles in each of my rows equals 13 how many rows do I have .

Answers

There are 5 row and 8 tiles in each row calculated using two equation.

What are System of equation?

Simultaneous equations, system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.

There are four methods to solving systems of equations: graphing, substitution, elimination and matrices.

Given I am an array made with 40 tiles I have an odd number of rows and an even number of tiles in each of my rows the number of my rows plus the number of tiles in each of my rows equals 13

Let "r" be the number of row and "t" be the number of tiles in each row.

Since, array has total 40 tiles

Thus,

r * t = 40

Also given

r +t = 13

From comparing these equation

r = 5 or 8

Since row is odd given

thus, r = 5

and t = 8

therefore, Two equations are used to determine the five rows and eight tiles in each row.

Learn more about System of equation here:

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8 by 5. The odd number of rows is 5 rows and the even number of tiles is 8

X^2-5x-8=0 find the roots (zeros)

Answers

Answer:

$x_1=(5-√(57))/(2)\ ,\quad x_2=(5+√(57))/(2)$

Step-by-step explanation:

$x^2-5x-8=0\n\na=1\,,\ b=-5\,,\ c=-8\n\nx=(-b\pm√(b^2-4ac))/(2a)\n\nx=(-(-5)\pm√((-5)^2-4\cdot1\cdot(-8)))/(2\cdot1)=(5\pm√(25+32))/(2)=(5\pm√(57))/(2)$

Justin is 2 years older than one third marcella's age

Answers

$x=63$ which is Marcella's age

$(1)/(3)$ of 63 is 21 ⇔ 63÷3=21

$2+21=23$ which is Justins age

$2(23)-4=42$

Marcella's age⇒63

Justin's age⇒23

Aimee's age⇒42

Note: I was trying to find a better way to do this but I couldn't figure it out in the top of my head so I'm sorry for the long response

If Marcella is 63, divide by 3 is 21, add 2 equals out to be 23 which is Justin's age. Then 23 multiplied by 2 is 46, subtract 4 from 46, which equals out be 42 and that is Aimee's age.:)

Marcella= 63
Justin= 23
Aimee= 42

Point A is located at (-2, -6) and is translated 4 units up. What are the coordinates of point A'?(-2, -2)
(-2, -10)
(2, -6)
(-6, -6)

Answers

Its A because the vertical line is the y-axis so 4+-6 is -2 and the x-axis would remain the same. #TeamAlvaxic

On a computer screen, PLS HELP ASAP!!!!!!!!!!!!Jennifer just created a triangular design of a banner with vertices at A(-4,3), B(-1,5) and C(-1,2). She can use the computer software to perform transformations on this design.

Which sequence of two transformations could she perform so that the transformed vertices become A’ (4,-5) , B’(7,-7), and C’(7,-4) ?

Answers

Answer: D

Step-by-step explanation: reflecting about the line y=-1, followers by translating 8 units to the right

Charlie solved an equation, as shown below:Step 1: 5x = 30
Step 2: x = 30 – 5
Step 3: x = 25

Part A: Is Charlie's solution correct or incorrect? If the solution is incorrect, explain why it is incorrect and show the correct steps to solve the equation.
Part B: How many solutions will this equation have?

Answers

Part A : His solution is incorrect because whenever you have a number "connected to" the variable, you have to divide. & what you do to one side, you have to do to the other. So, for step 2, instead of subtracting 5, you divide by 5. By doing this, you will then have 'x' by itself on the left, & on the right 30/5= 6. So, x=6.

Showing...
Step 1: 5x=30
Step 2: 5x/5=30/5 (the 5s cancel out, leaving you just x on the left)
Step 3: x=6

Part B : This solution will have only 1 answer, & that answer is 6. -6 wouldn't be counted as one because if you plug -6 into the equation as x, the sides won't equal, you'll have -30=30 which isn't true.

Hope this makes sense & helps you ! (:

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