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Answer:

A- The final price of the shirt was $27.36.

B- If it were reduced by 30% from the original price, the price of the shirt would be $26.6.

C- There is a difference between both prices because in the first case, the discount is split, making a first discount on a larger basis, and the second on a smaller basis, already made the first discount.

In contrast, at the second price, the entire percentage is made on the major basis. Therefore, the discount is larger.

Step-by-step explanation:

A- The final price of the shirt is determined by the following calculation:

(38 x 0.8) x 0.9 = FINAL PRICE

38 is multiplied by 0.8 because the price was reduced by 20% (0.2 is the 20% of 1, that is, of a unit. Therefore, the remaining price would be that 0.8 or 80%)

Then, using the same logic, we have to multiply that result by 0.9 in order to get the final price.

Therefore:

(38 x 0.8) x 0.9 = 30.4 x 0.9 = 27.36

B- Here, we would have to multiply 38 x 0.7, which gives a result of 26.6

Yes,

probability = favorable outcomes/ total outcomes

to calculate the probability for this to occur, we use nCr ( nCr = n!/r!)

there are total 10 digits

so probability of the number 0000 appear in a table of random digits=

(1*1*1*1)/(10C1 * 10C1 * 10C1 * 10C1)

= 1/10000

Statistics is a branch of mathematics dealing with data collection, analysis, interpretation, and presentation, consisting of two main types: descriptive and inferential. Statistical models use probability distributions to describe expected behaviors and variability within observations.

About Statistics

The field of statistics is an essential discipline within mathematics that entails the collection, analysis, interpretation, and presentation of data. In our daily lives, we encounter data in various forms, which can be meticulously examined and understood through statistical methods. Two main types of statistics exist: descriptive statistics and inferential statistics. Descriptive statistics summarize and describe the features of a specific data set, providing a way to visualize data through graphs, charts, and summary measures like the mean and standard deviation. On the other hand, inferential statistics allow us to make predictions or inferences about a population based on a sample of data.

Statistical models are used to describe phenomena, utilizing probability distributions to account for the expected behavior and variability of observations. When researchers collect data, they often use a random sample to represent the larger population. A statistic is a numerical characteristic derived from the sample that helps estimate the corresponding population parameter, which is a characteristic of the entire population.

Statistics and probability are intertwined; as we gather and inspect data, we use statistical tools to distinguish good data from bad and create accurate predictions. Properly understanding and applying statistics can lead to more informed decisions in science, business, policy-making, and virtually every other field where data is essential.

The correct answer is B. Clothing is to lace. The analogy asks to draw a comparison between an object and a characteristic of that object, so filigree is to jewelry as lace is to clothing.

The correct answer is B. Clothing is to lace. This analogy asks you to draw a comparison between an object and a characteristic or feature of that object. In the case of 'JEWELRY is to FILIGREE', filigree is a detailed, intricate design often found in jewelry. Similarly, in 'Clothing is to lace', lace is a material often found in clothing and contributes to the design or style of the clothing piece, much like filigree does for jewelry.

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Answer:

1.0625 gallons of water was used by her.

Step-by-step explanation:

Mrs McDonald used [tex]4\frac{1}{4}[/tex] gallons of water to water her flowers.

She used [tex]\frac{1}{4}[/tex] of the water on her flowers daisies.

We have to calculate the gallons of water used by her to water daisies.

Let Mrs McDonald used G gallons of water to water the flowers daisies.

Then one fourth of [tex]4\frac{1}{4}[/tex] = G

[tex]G=(\frac{1}{4}).(\frac{17}{4})[/tex]

[tex]G=\frac{17}{16}=1.0625 gallons[/tex]

Therefore 1.0625 gallons of water she used on the daisies.

Final answer:

The question appears centered around solving an equation or a system of equations to find values of variables in their simplest form. Strategies include simplification, elimination, substitution, or using matrices, depending on the equation's complexity.

Explanation:

The question seems to have a typo or confusion in presenting the equation properly. However, based on the context provided later in the information, solving equations and finding solutions in simplest form appears to be the central theme. When solving equations or systems of equations, the goal is to isolate the variable (for a single equation) or to find the variable values that satisfy all equations (for a system). This process often involves steps like simplifying equations, eliminating variables, and utilizing methods like substitution, elimination, or using matrices.

For simpler equations, like in the form of ax + b = c, you would solve for x by isolating it: x = (c - b) / a. When dealing with systems of equations, each equation provides a piece of the puzzle, and solving them together reveals all variable values that satisfy the system. The strategy often depends on the complexity and format of the equations involved.

The mentioned solutions, x = 3 and x = -7, imply that the problem revolves around finding specific values that satisfy a given equation or system. To confirm these solutions, one would substitute them back into the original equations to ensure they do not violate any of the given conditions. This step is crucial to validate the results of the solving process.

Given is a rectangular rug that she wants to put it in the space of her bedroom.

Given is the area of the rug = 6 square meters.

Also the height of the rug is given = 2.5 meters.

It says to find the base of the rug, let's assume base = B meters.

We know the formula for area of the rectangular shape is given as follows :-

Area = Base x Height

6 square meters = B meters x 2.5 meters

[tex] B = \frac{6}{2.5} =\frac{60}{25} = 2.4 \;meters [/tex]

Hence, the base of the rug = 2.4 meters.

Answer:

2.4 meters. is the answer

Step-by-step explanation:

The volumes of the rectangular prism 'X' (126 cu.cm.) is greater than the volumes of the rectangular prism 'Y' (110 cu.cm.).

[tex]V=l\times w\times h[/tex]

where, 'l' be the length of the rectangular prism,

'w' is the width  of the rectangular prism,

'h' is the height of the rectangular prism

For given question,

We have been given two rectangular prisms 'X' and 'Y'.

The dimensions of the rectangular prism 'X',

[tex]l=7~cm,w=3~cm,h=6~cm[/tex]

Using the formula for the volume of the rectangular prism,

[tex]\Rightarrow V=l\times w\times h\\\\\Rightarrow V=7\times 3\times 6\\\\\Rightarrow V=126~cu.cm.[/tex]                      ...................(i)

The dimensions of the rectangular prism 'Y',

[tex]l=5~cm,w=2~cm,h=11~cm[/tex]

Using the formula for the volume of the rectangular prism,

[tex]\Rightarrow V=l\times w\times h\\\\\Rightarrow V=5\times 2\times 11\\\\\Rightarrow V=110~cu.cm.[/tex]                        ...............(ii)

From (i) and (ii),

the volume of the rectangular prism 'X' is greater than the volume of the rectangular prism 'Y'.

Therefore, the volume of the rectangular prism 'X' (126 cu.cm.) is greater than the volume of the rectangular prism 'Y' (110 cu.cm.)

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Answer:

the answer is 154 cm, area = 1,452 cm2 I took the test

Step-by-step explanation:

The smallest number of new spools that Ted will need for this job is 8 spools of cable.

Given that, Ted is installing lighting in a new block of 12 apartments. He will need 60 metres of cable for each apartment. Each new spool holds 100 metres of cable.

We need to find the smallest number of new spools that Ted will need for this job.

A cylindrical device on which film, magnetic tape, thread, or other flexible materials can be wound; a reel.

Now, 60 meters per apartment x 12 apartments =720 total meters for all 12 apartments.

720 meters / 100 meters per spool =7.2 spools

so, Ted will need at least 8 spools of cable.

Therefore, the smallest number of new spools that Ted will need for this job is 8 spools of cable.

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Answer:

72

Step-by-step explanation:

The value of F when G equals 10 is 20.

The given problem states that F varies inversely with G. In other words, as G increases, F decreases, and vice versa. The inverse variation can be represented by the equation F = k/G, where k is a constant.

We are given that when G = 5, F = 40. To find the value of F when G = 10, we can use the equation F = k/G and substitute the given values.

F = k/5, and when F = 40, we have 40 = k/5. Solving for k, we get k = 40 x 5 = 200.

Now, we can substitute k = 200 and G = 10 into the equation F = k/G. F = 200/10 = 20.