Work out the percentage change to 2 decimal places when a price of £70 is increased to £99.

Answers

Answer 1
Answer:

The percentage change in the price is 41.42%.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Given that, a price of £70 is increased to £99.

Now, the difference is 99-70=29

Percentage increase is 29/70 ×100

= 0.4142×100

= 41.42%

Therefore, the percentage change in the price is 41.42%.

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Answer 2
Answer:

Answer: Your answer is 41.43%

To calculate, it is simply (99-70)/70 x 100

which is  equal to 41.43%

Step-by-step explanation:


Related Questions

A university administrator obtains a sample of the academic records of past and present scholarship athletes at the university. The administrator reports that no significant difference was found in the mean GPA (grade point average) for male and female scholarship athletes ( P = 0.287 ) . This means that: a. the maximum difference in GPAs between male and female scholarship athletes is 0.287. b. the chance of obtaining a difference in GPAs between male and female scholarship athletes as large as that observed in the sample if there is no difference in mean GPAs is 0.287. c. the GPAs for male and female scholarship athletes are identical, except for 28.7% of the athletes. d. the chance that a pair of randomly chosen male and female scholarship athletes would have a significant difference in GPAs is 0.287.
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Find tan x if sec x = sort 37/6 and sin x <0

Answers

Answer:

  tan(x) = -1/6

Step-by-step explanation:

We can use the relation between tan and sec:

  \displaystyletan(x)=\pm\sqrt{\sec^2{x}-1}\n\ntan(x)=-\sqrt{\left((√(37))/(6)\right)^2-1}\quad\text{negative because sine is negative}\n\n=-\sqrt{(37-36)/(36)}=\boxed{-(1)/(6)}

The tangent of x is -1/6.

When designing and writting questions for a survey , which of the following are issues that you need to pay attention to?A. Wording of questions
B. Order of questions
C. Sensitive questions
D. All of the above

Answers

Answer:A

Step-by-step explanation:

Write an augmented matrix for the system. Then state the dimensions. x+8y−7z=12 5x+9y+5z=15 6z−3y−8x=1

Answers

Answer: Write an augmented matrix for the system. Then state the dimensions. x+8y−7z=12 5x+9y+5z=15 6z−3y−8x=1

Step-by-step explanation: x+8y-7z=12 5x+9y+5z=15 6z-3y-8x=1. - 18028782.

Final answer:

The system of equations provided can be converted into an augmented matrix as follows: [[1, 8, -7, 12], [5, 9, 5, 15], [-8, -3, 6, 1]]. The dimensions of this matrix are 3x4.

Explanation:

The provided system of equations is:

1. x + 8y - 7z = 12

2. 5x + 9y + 5z = 15

3. -8x - 3y + 6z = 1

We can represent this system as an augmented matrix by aligning the coefficients of the variables and the constants. The augmented matrix is:

[[1, 8, -7, 12], [5, 9, 5, 15], [-8, -3, 6, 1]]

The dimensions of this matrix represents the number of rows and columns it has. In this case, this matrix is a 3x4 matrix because it has 3 rows and 4 columns.

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When Steve woke up his temperature was 102 degrees. Two hours later it was 3 degrees lower. What was his temperature then?

Answers

Answer:

99

Step-by-step explanation:

102-2=100

100-1=99

or

102-3=99

His temperature is 99

PLS DO 3-4 I WILL BRAINLIST YOU AND USE THE DATA AND EXPLAIN IT PLSSS HELP

Answers

Answer:

25, 33

Step-by-step explanation:

3. 124 divided by 5 is 24 remainder 4, so they will need 25 cars

4. 230 divided by 7 is 32 remainder 6, so they will need 33 boxes

You can use both the t statistic and the z statistic to test hypotheses about the mean of population. The test that uses the t statistic is typically referred to as a t test, while the test that uses z statistic is commonly called a z test. Which of the following statements are true of the t statistic? Check all that apply. The t statistic uses the same formula as the z statistic except that the t statistic uses the estimated standard error in the denominator. The t statistic provides an excellent estimate of z, particularly with small sample sizes. The formula for the t statistic is t = (M – μ) / σM. The t statistic does not require any knowledge of the population standard deviation.

Answers

Using the concepts of the t-statistic and the z-statistic, it is found that the correct option is:

The t-statistic does not require any knowledge of the population standard deviation.

The z-statistic is given by:

z = (X - \mu)/((\sigma)/(√(n)))

In which:

  • X is the sample mean.
  • \mu is the population mean.
  • \sigma is the population standard deviation.
  • n is the sample size.
  • The standard error is S_e = (\sigma)/(√(n)).

The t-statistic is similar to the z-statistic, the difference is that the sample standard deviation is used, not the population. Thus:

t = (X - \mu)/((s)/(√(n)))

In which:

  • X is the sample mean.
  • \mu is the population mean.
  • s is the sample standard deviation.
  • n is the sample size.
  • The standard error is S_e = (s)/(√(n)).

For large sample sizes, the sample and population standard deviations are close, thus t is a good estimate of z.

Thus, the correct option is:

The t-statistic does not require any knowledge of the population standard deviation.

A similar problem is given at brainly.com/question/16194574

Answer:

Detailed elaborated answer is given below: