Work out the percentage change when a price of £80 is increased to £100

Answer:

16870

Step-by-step explanation:

Answer: um 16870 I guess

Step-by-step explanation: I hope I help and can you plz give me a brainliest

Answer:

4

Step-by-step explanation:

2 + 2 = x

2 = x - 2

1 = \(\frac{x}{2}\) - 1

1 = \(\frac{x-2}{2}\)

4 = 2x - 4

8 = 2x

x = 4

2 + 2 = 4

Answer:

50

Step-by-step explanation:

undo in reverse order

subtract 15 from 115 and divide the answer in half

hope this helps!

Answer:

Step-by-step explanation:

Huilan is 15 years older than Thomas. The sum of their ages is 115 . What is Thomas's age?

115 - 15 = 100

100 : 2 = 50 (huilan)

50 + 15 = 65 (Thomas)

-----------------------

50 + 65 = 115

65 - 50 = 15

the answer is good

A Poisson random variable represents the number of occurrences of an event in a fixed interval of time or space. It is a discrete random variable, which means that it can only take on integer values, starting from zero. Therefore, the smallest numerical value that a Poisson random variable can be is zero.

This means that there is a possibility that the event will not occur at all during the given interval. For example, if we are counting the number of customers who visit a store in an hour, it is possible that no customers show up during that hour, resulting in a Poisson random variable of zero.

However, the probability of this occurring depends on the average rate of the event occurring, which is denoted by the parameter λ in the Poisson distribution. The larger the value of λ, the smaller the probability of a Poisson random variable being zero.

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Answer: \(P(B|A)=\dfrac{4}{9}\)

Step-by-step explanation:

Given: A bag contains 2 black balls, 4 yellow balls and 4 white balls.

Event A is defined as drawing a white ball on the first draw.

Event B is defined as drawing a black ball on the second draw.

P(B|A) is expressed as the conditional probability of occurring B given that A.

i.e. it is the probability of happening B where A is already happended.

If a white ball is drawn at first, then the number of black ball(4) remains unchanged but the total number of balls (10) will become 9.

\(Probability=\dfrac{Number\ of \ favorable \ outcomes}{Total\ outcomes}\)

Then, \(P(B|A)=\dfrac{4}{9}\)

Answer:

C.) 2/9

Step-by-step explanation:

4/9 CAN SIMPLIFY INTO 2/9

4 / 2 = 2

BRAINEST PLEASE

Answer:

así es es una fracción si necesita la respuesta me avisa

Answer:

Step-by-step explanation:

2, 2, 3, 3, 6, 8, 8, 8

Mean: ( 2 + 2 + 3 + 3 + 6 + 8 + 8 + 8 ) ÷ 8 = 5

Median: ( 3 + 6 ) ÷ 2 = 4.5

Mode: 8

Range: 8 - 2 = 6

Answer:

x=2, y=2

Explanation:

Given the system of equations:

To make the coefficient of x the same, multiply equation (1) by 1 and equation (2) by 2:

Subtract to eliminate x: (We always subtract same sign).

Substitute y=2 into equation (1) to solve for x:

The solution to the system is: x=2, y=2

The value of x, considering the proportional relationship in this problem, is given as follows:

\(x = 0.77 \times 10^{-46}\)

A proportional relationship is a relationship in which a constant ratio between the output variable and the input variable is present.

The proportional relationship for this problem is given as follows:

1u - \(6.02 \times 10^{23}\)

x u - \(4.65 \times 10^{-23}\)

Applying cross multiplication, the value of x is given as follows:

\(x = \frac{4.65 \times 10^{-23}}{6.02 \times 10^{23}}\)

\(x = 0.77 \times 10^{-46}\)

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The probability of a part having a diameter of at least 130 millimeters is 0.1587. The probability of a part having a diameter no greater than 130 millimeters is 0.8413. The probability of a part having a diameter between 100 and 130 millimeters is 0.3413. The probability of a part having a diameter between 70 and 100 millimeters is 0.2773.

(a) The probability of a part having a diameter of at least 130 millimeters is calculated by finding the area under the standard normal curve to the right of 130. This area is 0.1587.

(b) The probability of a part having a diameter no greater than 130 millimeters is calculated by finding the area under the standard normal curve to the left of 130. This area is 0.8413.

(c) The probability of a part having a diameter between 100 and 130 millimeters is calculated by finding the area under the standard normal curve between 100 and 130. This area is 0.3413.

(d) The probability of a part having a diameter between 70 and 100 millimeters is calculated by finding the area under the standard normal curve between 70 and 100. This area is 0.2773.

The standard normal curve is a bell-shaped curve that is used to represent the probability of a standard normal variable. The standard normal variable is a variable that has a mean of 0 and a standard deviation of 1.

The probability of a part having a diameter of at least 130 millimeters is 0.1587, which means that there is a 15.87% chance that a randomly selected part will have a diameter of at least 130 millimeters.

The probability of a part having a diameter no greater than 130 millimeters is 0.8413, which means that there is an 84.13% chance that a randomly selected part will have a diameter of no greater than 130 millimeters.

The probability of a part having a diameter between 100 and 130 millimeters is 0.3413, which means that there is a 34.13% chance that a randomly selected part will have a diameter between 100 and 130 millimeters.

The probability of a part having a diameter between 70 and 100 millimeters is 0.2773, which means that there is a 27.73% chance that a randomly selected part will have a diameter between 70 and 100 millimeters.

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The number line shows the value of 5 - (-8) = 13.

Addition:

Subtraction:

Here the given operation is subtraction. Where a subtrahend is a negative number i.e., -8.

Step1: Start from '5' on the number line.

Step2: Since the subtrahend is a negative number, move to the right side on the number line from '5'.

Step3: Thus, the number obtained on the line is 13.

Step4: Algebraically the result is 5 - (-8) = 5 + 8 = 13.

The number line for this operation is shown below.

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She have 1 hour 17 minutes remaining for the second section.

what is total time ?

Time can be defined as an ongoing and continuous sequence of events that occur in succession, from past through the present, and to the future. Time is used to quantify, measure, or compare the duration of events or the intervals between them, and even, sequence events.

Given:

Total time : two hours

Time taken to complete the first section =  forty-three minutes

Now , minutes she have remaining on the second section

= Total time - Time taken to complete the first section

= 2 hours - 43 minutes

= 1 hour 17 minutes

Hence , she have 1 hour 17 minutes remaining for the second section.

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The correlation analysis indicates a moderate positive relationship between Column X and Column Y.

To perform correlation analysis, we can use the Pearson correlation coefficient (r) to measure the linear relationship between two variables, in this case, Column X and Column Y. The value of r ranges from -1 to 1, where 1 indicates a perfect positive correlation, -1 indicates a perfect negative correlation, and 0 indicates no correlation.

Here are the steps to calculate the correlation coefficient:

Calculate the mean (average) of Column X and Column Y.

Mean(X) = (10+6+39+24+35+12+33+32+23+10+16+16+35+28+5+22+12+44+15+40+46+35+28+9+9+8+35+15+34+16+19+17+21) / 32 = 24.4375

Mean(Y) = (37+10+18+12+11+34+26+9+42+24+40+1+39+24+42+7+17+17+27+47+35+14+38+18+17+22+12+30+18+43+24+45+24) / 32 = 24.8125

Calculate the deviation of each value from the mean for both Column X and Column Y.

Deviation(X) = (10-24.4375, 6-24.4375, 39-24.4375, 24-24.4375, ...)

Deviation(Y) = (37-24.8125, 10-24.8125, 18-24.8125, 12-24.8125, ...)

Calculate the product of the deviations for each pair of values.

Product(X, Y) = (Deviation(X1) * Deviation(Y1), Deviation(X2) * Deviation(Y2), ...)

Calculate the sum of the product of deviations.

Sum(Product(X, Y)) = (Product(X1, Y1) + Product(X2, Y2) + ...)

Calculate the standard deviation of Column X and Column Y.

StandardDeviation(X) = √[(Σ(Deviation(X))^2) / (n-1)]

StandardDeviation(Y) = √[(Σ(Deviation(Y))^2) / (n-1)]

Calculate the correlation coefficient (r).

r = (Sum(Product(X, Y))) / [(StandardDeviation(X) * StandardDeviation(Y))]

By performing these calculations, we find that the correlation coefficient (r) is approximately 0.413. Since the value is positive and between 0 and 1, we can conclude that there is a moderate positive relationship between Column X and Column Y.

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Answer:

i love this one 123465678891011121314

The case 1 (a certificate of deposit (CD) ) will earn more interest.

Simple interest is the interest amount for a particular principal amount of money at some rate of interest.

Simple Interest is calculated using the following formula: SI = P × R × T, where P = Principal, R = Rate of Interest, and T = Time period.

Given

Case 1:

Principal  p = $500

Time t = 3 years

Rate of interest r = 2%

Based on the given conditions

Simple Interest = \(\frac{prt}{100}\)

= \(\frac{500(2)(3)}{100}\)

= $30

Case 2:

Principal  p = $250

Time t = 2 years

Rate of interest r = 3%

Based on the given conditions

Simple Interest = \(\frac{prt}{100}\)

= \(\frac{250(3)(2)}{100}\)

= $15

The case 1 CD will earn more interest.

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Answer:

the answer to the question is d (8,85)

Answer: D since the equation would be y=10x

Step-by-step explanation:

The line plot is attached based on the information given.

A line plot is a graph that shows data as dots or checkmarks above a number line to indicate how frequently each value occurs. Only numerical, discrete data, not continuous data, is shown using line graphs. Line plots categorize the data by showing how often each value appears on a number line. Small data sets make these graphs easy to make, and the revealed frequency patterns allow for interpretation.

Each mark on the line plot represents one of the distances Tomas rode. The number on the horizontal axis represents the day of the week and the vertical axis represents the distance in miles. The line plot shows that on most days, Tomas rode between 3 and 5 1/2 miles.

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 Answer:

23.8.

34 = (70:100)* 34 = (70* 34):100 = 2380:100 = 23.8. Now we have: 70 percent of 34 = 23.8.

Answer:

47.12

Step-by-step explanation:

C=2πr=2·π·7.5≈47.12389

Answer:

$0.62.

Step-by-step explanation:

Answer:

$0.62

Step-by-step explanation:

You'd find the answer by dividing 5 by 3.10, so it would look like this: 3.1/5

Your answer would be $0.62

Answer:

9 times

Step-by-step explanation:

The total amount allocated to the Department of Health is R145,026,540,000, calculated by multiplying the total expenditure by the percentage allocated to the department expressed as a decimal.

To calculate the total amount allocated to the Department of Health, we need to multiply the total expenditure by the percentage allocated to the department, which is 12.6%.

Then, we must divide the percentage by 100 to get the decimal equivalent:

12.6/100 = 0.126

Next, we can calculate the total amount allocated to the Department of Health by multiplying the total expenditure by the decimal equivalent of the percentage:

Total amount allocated to the Department of Health = 0.126 x R1 149 390bn

Simplifying this expression, we get:

Total amount allocated to the Department of Health = R145,026,540,000

Therefore, the total amount allocated to the Department of Health is R145,026,540,000.

The calculation involves multiplying the total expenditure by the decimal equivalent of the percentage allocated to the department, which gives the amount allocated to the Department of Health.

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Step-by-step explanation:

From the image, let Angle 1 be x, and angle 2 be 16°

\({ \tt{x + 16 = 180}} \\ { \tt{x = 164 \degree}}\)

\(\bold{H \: e \: y \: o \: !}\)

__________________

\(\mathtt{\sqrt{\frac{9x^3}{4y^2}}}\)

__________________

Apply radical rule: \(\mathtt{=\sqrt{\frac{a}{b}}} \: = \: \mathtt{\sqrt{\frac{a}{b}}},\) assuming \(\mathtt{a \geq 0, \: b \: \leq 0}\)

\(\mathtt{=\sqrt{\frac{9x^3}{4y^2}}}\)

__________________

Simplify: \(\mathtt{\sqrt{9x^3}} \: : \: \mathtt{3x\sqrt{x}}}\)

\(\mathtt{=\sqrt{\frac{3x\sqrt{x}}{4y^2}}}\)

__________________

Simplify: \(\mathtt{\sqrt{4y^2}} \: : \: \mathtt{2y}\)

\(\mathtt{\frac{3x\sqrt{x}}{2y}}\)

Hope It Helps!

A n s w e r e d : -  ᴀᴅʀɪᴀɴɴᴏɪʀ

The value of is 1.645. This is derived from the area under the normal curve between 0 and 1.645 being equal to 0.25, which is one-fourth of the total area under the entire curve.

To calculate this, we must first understand the concept of the Standard Normal Distribution. The Standard Normal Distribution is a normal distribution with a mean of 0 and a standard deviation of 1. This is the basis of the calculation.

Next, we need to understand the concept of the cumulative probability density function. This is a function that gives the probability that a variable will take a value that is less than or equal to a given value.

For our calculation, we will use the cumulative probability density function for the Standard Normal Distribution.

Now, to calculate the value of , we can use the cumulative probability density function. We will set the cumulative probability density function equal to 0.25.

This is the probability that a variable will take a value that is less than or equal to . Solving for, we get 1.645. This is the value of.

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Answer:

y = (5/2)x + 4

Step-by-step explanation:

We'll look for an equation in the format y = mx + b, where mn is the slope and b the y-intercept (the value of y when x = 0).

y = mx + b

m is (5/2)

y = (5/2)x + b

We need a value of b that will force the line through point (-2,-1).  Enter the point (-2,-1) in the equation and solve for b:

y = (5/2)x + b

-1 = (5/2)(-2) + b

-1 = -5 + b

b = 4

The equation is y = (5/2)x + 4

See attached image.

Answer:

6x2 is multiplying 6 by 2 while 6² is said as '6 squared' meaning 6x6.

Step-by-step explanation:

6x2 is basic multiplication of 6x2 while 6² means we should completed 6x6.

Answer:

\(\boxed {x = 19}\)

Step-by-step explanation:

Solve for the value of \(x\):

\(3x - 4 = 15 + 2x\)

-Take \(2x\) and subtract it from \(3x\):

\(3x - 4 - 2x = 15 + 2x - 2x\)

\(x - 4 = 15\)

-Add \(4\) to both sides:

\(x - 4 + 4 = 15 + 4\)

\(\boxed {x = 19}\)

So, the value of \(x\) is \(19\).

Answer:

x₂ = - 3

Step-by-step explanation:

Calculate the slope m using the slope formula and equate to \(\frac{5}{6}\)

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (9, 9) and (x₂, y₂ ) = (x₂, - 1)

m = \(\frac{-1-9}{x_{2}-9 }\) , that is

\(\frac{-10}{x_{2}-9 }\) = \(\frac{5}{6}\) ( cross- multiply )

5(x₂ - 9) = - 60 ( divide both sides by 5 )

x₂ - 9 = - 12 ( add 9 to both sides )

x₂ = - 3

Answer:

1402 tiles

Step-by-step explanation:

so in order to find the amount of glass tiles we will first need to find the surface area of the box

so the surface area formula for a rectangular prism is

2 (wl * hw* hl)

w- width

h- height

l- length

so the width would be 18centimeters

the height would be 7 cm

and the length would be 23 cm

therefore if we plug in the measurements into the equation it will give us a total surface area of

1402cm^2

therefore if Dimitri wants to cover the box with 1cm glass tiles then we take the 1402cm and divide it by 1cm leaving us with the same answer of

1402 tiles

The trigonometric ratios are tanθ = 6/√13 and secθ = 7/√13.

Given that, sinθ = 6/7.

Here, sinθ= y/r

If the point in the angle's terminal side is P=(x, y) then the trigonometric functions can be calculated as:

r=√(x²+y²)

7²=x²+6²

49=x²+36

x²=49-36

x²=13

x=√13

Now, tanθ = y/x = 6/√13 and secθ = r/x = 7/√13

Therefore, the trigonometric ratios are tanθ = 6/√13 and secθ = 7/√13.

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