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VARVARA [1.3K]
3 years ago
8

What will be the area of the cover

Mathematics
1 answer:
uysha [10]3 years ago
3 0
Forgot a pic but ill take the points lol
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one room length 12.8 and breadth equals to 850 CM inside that room there is a bad length is 300 cm and breadth is 400 cm find th
9966 [12]

Answer:

Area = 968000cm^2

Step-by-step explanation:

To be able to answer this question properly. I'll assume the length of the room is in meters.

So for the room, we have:

Length = 12.8m

Breadth = 850cm

For the bed, we have:

Length = 300cm

Breadth = 400cm

First, we calculate the surface area of the room.

A_1 = 12.8m * 850cm

Convert all units to cm

A_1= 12.8*100cm * 850cm

A_1= 1 088 000 cm^2

Next, we calculate the area of the bed

A_2 = 300cm * 400cm

A_2 = 120000cm^2

The area of the space left  is the difference between A1 and A2

Area = A_1 - A_2

Area = 1088000cm^2 - 120000cm^2

Area = 968000cm^2

5 0
3 years ago
Twenty years ago, bruce wayne bought a batmobile for 250250250 million dollars. as the crime in gotham city has been down for a
dem82 [27]

Bruce will receive $160 million for the batmobile.

<h3>What is percentage?</h3>

The term "percentage" comes from the Latin phrase "per centum," meaning means "by the hundred." Percentages is fractions with a denominator of 100.

In other terms, it is the relationship between portion and whole in which the value of the whole is always assumed to be 100.

Calculating a percentage implies determining a portion of a whole in term of 100. A percentage can be calculated in two ways:

  1. The unitary technique is used.
  2. By adjusting the fraction's denominator to 100.
  3. It must be noted that second method of percentage calculation is not employed when the denominator isn't a factor of 100. In such circumstances, we employ the unitary technique.

Now, according to the question;

Given that prices fall about 20% every decade;

Thus,  100% - 20% = 80%

He paid $250 million for a batmobile twenty years ago.

Let Bruce to receive x millions of dollars for the batmobile.

⇒ 80% of x = 80/100 × x = 4/5 x

⇒ x = 250(4/5)(4/5)

⇒ x = 250(16/25)

⇒ x = 160

As a result, Bruce will receive 160 millions of dollars for such batmobile.

To know more about the percentage, here

brainly.com/question/317717

#SPJ4

The correct question is-

Twenty years ago, Bruce Wayne bought a batmobile for 250 million dollars. As the crime in Gotham city

has been down for a while, he plans to sell it.

How much can he get for the batmobile if the price goes down by 20% every decade? million dollars

6 0
2 years ago
What is the most precise name for quadrilateral ABCD with vertices A(-3,1) , B(-1,4) , C(5,4) , and D(3,1)?
Natasha2012 [34]
The best and most correct answer among the choices provided by your question is the fourth choice or letter D.

We can imply from the given points that the figure is four-side or a quadrilateral.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
3 years ago
Read 2 more answers
Trey has answered 15 emails. This is 20% of emails he must answer how many emails does he needs to answer
Anettt [7]

Answer:

60

Step-by-step explanation:

15 times 5 is 75 75 minus 15 is 60 so the answer is 60

3 0
2 years ago
Read 2 more answers
How can bar diagrams be used to model numerical expressions
vesna_86 [32]
A bar diagram can be used to represent algebraic expressions or to give examples.
5 0
3 years ago
Read 2 more answers
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