Helpppp!! ASAP
Pleaseee?

Answer:

100 =x

Step-by-step explanation:

We want the same ratio

70       x

----- = ---------

84          120

Using cross products

70*120 = 84x

Divide each side by 84

70*120/84 = x

100 =x

Answer: 100 people

Step-by-step explanation:

So if we know that 70 out of 80 prefer pro football in ht north then we could set up a proportion to solve how many will prefer pro football in the south over the total of 120.

\(\frac{70}{84} = \frac{x}{120}\)   =?

84x = 8400

x= 100  

Now we could say that a 100 people has to prefer professional football .

Samantha often talks on her cell phone while driving. this can be distracting and increases her chance of having an accident. Don't use the phone at all while driving.

What is rules of driving?

I will advise her to refrain from using her phone at all while driving.

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a) To calculate the pressure at 12 hours of shut-in:

substitute the given values into the pressure buildup equation and solve for P(t=12).

b) Superposition in time is used in pressure buildup analysis by adding or summing the responses of multiple transient tests to analyze and interpret reservoir behavior and properties.

We have,

a) To calculate the pressure in the production well at 12 hours of a shut-in, we can use the equation for pressure transient analysis during shut-in periods, known as the pressure buildup equation:

P(t) = Pi + (Q / (4πKh)) * log((0.14ϕμCt(t + Δt)) / (Bo(ΔP + Δt)))

Where:

P(t) = Pressure at time t

Pi = Initial reservoir pressure

Q = Flow rate

K = Permeability

h = Reservoir thickness

ϕ = Porosity

μ = Viscosity

Ct = Total compressibility

t = Shut-in time (12 hours)

Δt = Time since the start of the flow period

Bo = Oil formation volume factor

ΔP = Pressure drop during the flow period

Given:

Pi = 3100 psi

Q = 200 STB/day

K = 45 md

h = 60 ft

ϕ = 15%

μ = 1.2 cp

Ct = 15x10^-6 psi^-1

Bo = 1.3 bbl/STB

t = 12 hours

Δt = 48 hours

ΔP = Pi - P(t=Δt) = Pi - (Q / (4πKh)) * log((0.14ϕμCt(Δt + Δt)) / (Bo(ΔP + Δt)))

Substituting the given values into the equation:

ΔP = 3100 - (200 / (4π * 45 * 60)) * log((0.14 * 0.15 * 1.2 * 15x\(10^{-6}\) * (48 + 48)) / (1.3 * (3100 - (200 / (4π * 45 * 60)) * log((0.14 * 0.15 * 1.2 * 15 x \(10^{-6}\) * (48 + 48)) / (1.3 * (0 + 48))))))

After evaluating the equation, we can find the pressure in the production well at 12 hours of shut-in.

b) Superposition in time is a principle used in pressure transient analysis to analyze and interpret pressure build-up tests.

It involves adding or superimposing the responses of multiple transient tests to simulate the pressure behavior of a reservoir.

The principle of superposition states that the response of a reservoir to a series of pressure changes is the sum of the individual responses to each change.

Superposition allows us to combine the information obtained from multiple tests and obtain a more comprehensive understanding of the reservoir's behavior and properties.

It is a powerful technique used in reservoir engineering to optimize production strategies and make informed decisions regarding reservoir management.

Thus,

a) To calculate the pressure at 12 hours of shut-in:

substitute the given values into the pressure buildup equation and solve for P(t=12).

b) Superposition in time is used in pressure buildup analysis by adding or summing the responses of multiple transient tests to analyze and interpret reservoir behavior and properties.

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Answer: In this example, if you buy an item at $175 with 30% discount, you will pay 175 - 52.5 = 122.5 dollars.

Step-by-step explanation:

Answer:

-8

Step-by-step explanation:

Answer:

Let's do this step by step

Step-by-step explanation:

I hope this helps

Answer:

2 7/9

Step-by-step explanation:

1/3 * (8 3/6-1/6) = 1/3 *(8 2/6) = 1/3 * 50/6 = 50/18 = 25/9 = 2 7/9

Answer: \(2\frac{7}{9}\)

Step-by-step explanation:

Make the mixed number into improper fraction.

Don't do anything to second fraction as it is not a mixed number and already as simple as it can get.

Make the denominators the same *multiply 2 by 6 and 6 by 2 to make both of them 12.

Whatever you do to denominator do to the numerator.

Minus the numerators and leave the denominator 12.

Simplify if you wish.

To multiply with 1/3 just times the numerator with numerator and denominator with denominator. Simplify and thats your answer.

Sorry again for my frozen screen. I lost a more detailed explanation that took ages to create.

Answer:

C. y = -2^x

Step-by-step explanation:

I put it in Desmos graphing calculator.

desmos. com/calculator

Step-by-step explanation:

Its the third one

Because in the bracket

so that's your answer

Therefore , the solution of the given problem of function comes out to be the duckweed to grow a mass triple the original size will be 45 hours.

The mathematics curriculum involves examining numbers, the equation the environment we live in, structures, and both actual and hypothetical locations. A function is a variable representation of the relationship between the quantities of intake and the corresponding outputs for each. Simply explained, a function is a collection of inputs that, when combined, provide unique outputs for each input.

Here,

Given :

mass of a population of duckweed is 500g

=>  function m(t)= 500x³^t/45

So,

=> t = 45 hours

Since it is given that the mass of the population of the duckweed triples every 45 hours

it is clear that the time taken for the duckweed to grow a mass triple the original size will be 45 hours .

Therefore , the solution of the given problem of function comes out to be the duckweed to grow a mass triple the original size will be 45 hours.

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0.303 is the answer go to calculator n check

To estimate the quotient of 828 ÷ 23, round the numbers. The estimate is 40. The exact quotient is 36. By multiplying the quotient and divisor, you can check the answer.

To estimate the quotient of 828 ÷ 23, you can round both numbers. Let's round 828 to 800 and 23 to 20. Divide 800 by 20 to get an estimate of 40 as the quotient.

To find the exact quotient, divide 828 by 23. The exact quotient is 36.

To check the answer using multiplication, multiply the quotient (36) by the divisor (23). The product should be equal to the dividend (828). 36 × 23 = 828, which confirms that the answer is correct.

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Answer:

Step-by-step explanation:

Answer:

= 570

Step-by-step explanation:

Priority in order:

    (50 x 40 / 4 + 20) + (50 / 2 + 25)

=   (2000 / 4 + 20) + ( 25 + 25)

=   ( 500 + 20) + ( 50 )

=   ( 520 ) + 50

=   520 + 50

=   570

we can say that if one of the eight angles if a parallel line is 90°, then all other angles are also 90°.

We have the information that:

Line r cuts a pair of parallel lines. One of the eight angles created measures 90°.

Now, we can say that the alternate interior angles hat will be formed by the line or transversal will also be 90°.

Now, For co- interior angles, we get that:

Let them be x

x + 90° = 180°

x = 90°

So, we get that all the other angles will also be 90°.

Therefore we can say that if one of the eight angles if a parallel line is 90°, then all other angles are also 90°.

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Answer:

i think option d is the correct answer of this question.

Answer:is this a literal question?

Step-by-step explanation:

if so than it depends on the subject for me

Factor by grouping: 16x³ +28x² - 28x - 49 = 0 is  (4x² - 7) (4x - 7) = 0

Large polynomials can be divided into groups based on a common factor. As a result, we may factor each distinct group and then merge like words. We refer to this as factoring by grouping.

We have the equation,

16x³ +28x² - 28x - 49 = 0

In order to solve the equation by using factor by grouping:

We find common terms in between,

So, we arrange the terms,

16x³ +28x² - 28x - 49 = 0

4x² (4x - 7) -7 (4x - 7) = 0

Here, we have common term (4x-7).

Factor out the common binomial.

(4x² - 7) (4x - 7) = 0

Therefore, (4x² - 7) (4x - 7) = 0 is the factor.

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Answer:11

Step-by-step explanation:

x^2-108 =13

    +108   +108

x^2=121

2√x= √121

 x=11

Answer:

7/10

Step-by-step explanation:

red + green = 50 + 20 = 70 marbles

Total marbles = 50 + 30 + 20 = 100 marbles

P(red or green) = 70/100

P(red or green) = 7/10

Answer:

49°

Step-by-step explanation:

Line ED is 180°, so you can subtract 180 - 67 to find the value of ∠ACB, which is 113°. Since the angles of a triangle will always add up to 180°, you just need to subtract 180 - 18 - 113. This will get you 49°.

A

1) Let's solve this system graphically, by plotting each line.

I) y + 2x = -1 Let's rewrite it as the slope-intercept form

y = -2x -1

Writing a t -table for that:

x | y=-2x-1

0 | -1

1 | -3

2 | -5

II) 3y -x = 4 Let's rewrite it as the slope-intercept form

3y = 4 +x Divide both sides by 3

y = 4/3 + x/3

Writing a table for that:

x | y = 4/3 +x3

0 | 1.33

1 | 1.66

2 | 2

2) As we have three coordinate points for each equation, we can locate them in the Coordinate Plane:

Notice that, the common point to those lines (the red one: 3y-x =4) and (blue: y+2x=-1)

3) Hence, the answer is A

Answer:

I think it would be 216cm

Step-by-step explanation:

how I got this answer?:

cubes are mostly the same in all sides due to all the sides being equal

Answer:

6\(x^{3}\)- 19\(x^{2}\)+\(x\)+6

Step-by-step explanation:

Answer:

6x³ - 19x² + x + 6

Step-by-step explanation:

Answer:

m∠JKM = 63°

m∠MKL = 27°

Step-by-step explanation:

Since ∠JKL is a right angle. This means that by summing up both m∠JKM and m∠MKL will result in the same as ∠JKL figure. Thus, m∠JKM + m∠MKL = m∠JKL which is 90° by a right angle definition.

\(\displaystyle{\left(12x+3\right)+\left(6x-3\right) = 90}\)

Solve the equation for x:

\(\displaystyle{12x+3+6x-3 = 90}\\\\\displaystyle{18x=90}\\\\\displaystyle{x=5}\)

We know that x = 5. Next, we are going to substitute x = 5 in m∠JKM and m∠MKL. Thus,

m∠JKM = 12(5) + 3 = 60 - 3 = 63°

m∠MKL = 6(5) - 3 = 30 - 3 = 27°

Answer:

Step-by-step explanation:

Stop Cheating.

The solution to the equation is (325, 404) which is the point of intersection.

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the slope of the line and b is the y intercept.

Let x represent the number of student tickets and y represent the number of adult tickets.

It is given by the equation:

The solution to the equation is (325, 404) which is the point of intersection.

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The number of functions from a set X with m elements to a set Y with n elements is given by  \(n^{m}\)

This is because for each element in X, there are n possible elements in Y to which it can be mapped. So, for each of the m elements in X, there are n choices, giving a total of n * n * ... * n (m times) possible functions.

The number of injections (or one-to-one functions) from a set X with m elements to a set Y with n elements is given by the number of ways to choose m elements from a set of n elements, which is given by the binomial coefficient C(n, m).

This is because an injection must map each element in X to a distinct element in Y, so the number of injections is equal to the number of ways to choose m elements from n elements without repetition.

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Answer:

95 percent decrease

Step-by-step explanation:

2000/100=5 percent. This means that for every 100 decrease, the percent decrease is 5 percent.

Since it decreased by 1900, 19 hundreds x 5 =95 percent decrease

If you liked my answer, a brainliest would much be appreciated! Thanks!

The value of 2,000 is decreased to 100. Then the percentage of decrease will be 95%.

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

The value of 2,000 is decreased to 100. Then the percentage of decrease will be given as,

P = [(2,000 - 100) / 2,000] x 100

Simplify the expression, then we have

P = [(2,000 - 100) / 2,000] x 100

P = [1,900 / 2,000] x 100

P = 0.95 x 100

P = 95%

The value of 2,000 is decreased to 100. Then the percentage of decrease will be 95%.

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Answer:

The answer it's: D. g(x) = |x +2|

Answer: g(x)=|x|+2

Step-by-step explanation: