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

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

which is  equal to 41.43%

Step-by-step explanation:

Related Questions

Find tan x if sec x = sort 37/6 and sin x <0

tan(x) = -1/6

Step-by-step explanation:

We can use the relation between tan and sec:

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

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

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.

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?

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

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.

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:

In which:

• X is the sample mean.
• is the population mean.
• is the population standard deviation.
• n is the sample size.
• The standard error is .

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

In which:

• X is the sample mean.
• is the population mean.
• is the sample standard deviation.
• n is the sample size.
• The standard error is .

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