1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stealth61 [152]
3 years ago
15

Mario’s house has a rectangular door and a rectangular window that are similar shapes. Each dimension of the door is 1.8 times t

he dimensions of the window. Which of the following is true?
A. The area of the door is 1.8 times the area of the window.
B. The area of the door is 3.6 times the area of the window.
C. The area of the door is 3.24 times the area of the window.
D. The perimeter of the door is 3.24 times the perimeter of the window
Mathematics
2 answers:
yaroslaw [1]3 years ago
8 0

Answer:

The area of the door is 3.24 times the area of the window.

Step-by-step explanation:

The area of a recangle is given by the following formula:

area = width*length

While the perimeter is given by:

perimeter = 2*width + 2*length

Assumint the width of the window is x and the length of the window is y, it's area and perimeter are:

window area = x*y

window perimeter = 2*x + 2*y

Since each dimension of the door is 1.8 times the dimensions of the window, then the door width = 1.8x and the door length = 1.8y. So the area and the perimeter are:

door area = (1.8*x)*(1.8*y) = 3.24*x*y

door perimeter = 2*(1.8*x) + 2*(1.8*y) = 3.6*x + 3.6*y = 3.6*(x + y)

Since window area = x*y and window perimeter = (x + y), we have:

door area = 3.24*(window area)

door perimeter = 3.6*(window perimeter)

Therefore the correct answer is C. The area of the door is 3.24 times the area of the window.

mariarad [96]3 years ago
8 0

Answer:

C. The area of the door is 3.24 times the area of the window.

Step-by-step explanation:

Area of rectangle = length × width

Perimeter of a rectangle = 2 (length × width)

Let the dimension of the window be;

length = l

width = w

Area of window = l × w

                           = lw

Perimeter or window = 2(l + w)

Given that: the dimension of the door is 1.8 times that of the window, dimension of door are;

length of door = 1.8l

width of door = 1.8w

Area of the door = 1.8l × 1.8 w

                            = 3.24lw

But area of window = lw, therefore;

∴ Area of door = 3.24 ×Area of window

Perimeter of door = 2 (1.8l + 1.8w)

                             = 3.6 (l + w)

∴ Perimeter of door = 3.6 × Perimeter of window

Therefore, area of the door is 3.24 times the area of the window is the correct option.

You might be interested in
Andrew believes the honor roll students at his school have an unfair advantage in being assigned to the math class they request.
nadya68 [22]

Answer:

Honor students have a probability of 43% to non-honor students 25%.

Step-by-step explanation:

Prob of honor student getting math class choice = 215/500 = 43%

Prob of non-honor student getting math class choice = 125/500 = 25%

5 0
3 years ago
3. The academic Quiz advisor needs to choose the top member to compete in a final challenge. Tobin and Yolanda have approximatel
Natali [406]

Answer:

The safer option, would be to pick Yolanda, because of the lower risk involved. It is certain that she would score in and around the mean.

But, if one is a betting man, the rewards from Tobin performing to the favourable side of his wider range of possible scores would guarantee a higher mark. Although, there's an equal likelihood that Tobin's scores might tilt towards the unfavourable side.

Step-by-step explanation:

The mean absolute deviation (MAD) and the inter quartile range (IQR) both serve to highlight the spread variables in the dataset about the mean.

The higher their respective values, the more the variation of the variables in the dataset. It means

A high MAD and IQR indicate that the possible different obtainable scores from the candidate can take on values from extreme lows to extreme highs all around the mean, a wider range of possible scores.

This translates to the fact that Tobin's scores, which have a clearly superior MAD and IQR, have a higher risk attached to them. It is possible the scores in the exam take on values much lower than the mean or values much higher than the mean.

Yolanda on the other hand, has a lower MAD and IQR, thereby indicating a narrower range of possible values for her scores. This means that her scores will hover in and around the mean without big variations.

Yolanda's scores have a lower risk attached to them as it is guaranteed thay she would score close to their common mean score.

But Tobin's scores have a high risk and high reward attached to them. Going with Tobin would mean that one is ready to expect a score from a wider range about the mean.

Tobin could spectacularly post scores that are very much more than their mean score or post scores that are way worse than their mean score.

So, the choice of who to pick depends on which approach one takes to this subject matter.

Minimum Highest loss would mean Yolanda is safer and a better option.

Maximim Highest gain would mean Tobin is worth the risk and might be a better option.

Hope this Helps!!!

5 0
3 years ago
Please help if you could! Thank you :D
lakkis [162]

Answer:

ur mummy

Step-by-step explanation:

ur mum is ur mum so yeah

3 0
3 years ago
Read 2 more answers
Can you please help me with the question
lubasha [3.4K]
180 feet

4.5 x 40 = 180
3 0
4 years ago
Your local bank offers free checking for accounts with a balance of at least $600. Suppose you have a balance of $623.47 and you
emmainna [20.7K]
$9.51 Would be your answer
5 0
4 years ago
Read 2 more answers
Other questions:
  • Lee el párrafo y escoge la mejor respuesta. Read the excerpt and choose the best response.
    7·1 answer
  • Two stores sell the same television for the same original price. Store A advertises that the television is on sale for 30% off t
    11·2 answers
  • The distance a person walks, d, in kilometers, is a function of time, t, in minutes, since
    15·1 answer
  • What is 3 upon 4 whole square​
    14·1 answer
  • Factorise the following expression using grouping and use binomial products to simplify.
    7·2 answers
  • -15X - 40 = 23 - 8<br> This is the problem and I am totally lost
    7·2 answers
  • Need help on finding the mode (:
    5·2 answers
  • WHO ELSE JUST FOUND OUT THAT BTS IS COMING OUT WITH A NEW ALBUM THIS MONTH?!?!?!?
    14·2 answers
  • Solve similar triangles (advanced)
    13·1 answer
  • Based on the simulation, what proportion of the 95 percent confidence intervals capture the population proportion of 0.3? Explai
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!