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AysviL [449]
3 years ago
8

A room is 12cm long, 7cm wide and4cm high find the area the ceiling​

Mathematics
2 answers:
laiz [17]3 years ago
8 0

Answer:

84 cm.

Step by Step Explanation:

length= 12 cm

breadth= 7 cm

Height= 4 cm

Area= L×B

= (12×7) cm

= 84 cm^2

aksik [14]3 years ago
5 0
Hey there!
I think that it safe to say that this room is a rectangular prism. Therefore, the top and bottom (floor and ceiling) have the same area. We see that our floor dimensions are 12 cm long and 7 cm wide. This also applies to the ceiling. Let’s take our two sides and multiply then to find our area.

12(7)=84

Therefore, the area is 84 square centimeters.

I hope that this helps!
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exis [7]

Answer:

c 15 square units

Step-by-step explanation:

it is very easy

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3 years ago
A jewelry store marks up the price of its jewelry up 50%. What will be the selling price of an item that the store purchased for
snow_tiger [21]

Answer: $142.5

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3 0
3 years ago
Find the values of x and y.
malfutka [58]

Answer:

y=57, x=77

Step-by-step explanation:

The line that creates x-3 is parrelell to the line that makes 74 degrees

You know that x-3=74

When you simplify you get x=77

Now that you know that x-3=74 you can add all the angles to 180 because they are a supplementary angle

74+41+(y+8)=180, then simplify

115+y+8=180, simplify more

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4 0
3 years ago
If gasoline costs 1.50 euros per liter it will cost how much to drive 220 kilometers
jok3333 [9.3K]

Answer:

11.79\ euros

Step-by-step explanation:

<u><em>The complete question is</em></u>

Suppose that a new​ fuel-efficient European car travels an average of 28 kilometers on 1 liter of gasoline. If gasoline costs 1.50 euros per​ liter, how much will it cost to drive 220 kilometers ?

step 1

using proportion

Find out the number of liters of gasoline needed for 220 kilometers

so

\frac{28}{1}\ \frac{Km}{L}=\frac{220}{x}\ \frac{Km}{L}\\\\x=220/28\\\\x=7.86\ L

step 2

Find the cost to drive 220 kilometers

Multiply the cost of one liter of gasoline by the total liters of gasoline needed to travel 220 Km

so

1.50(7.86)=11.79\ euros

6 0
3 years ago
Which place do you round to find the rounded number that is closest to 9,760,000?
sukhopar [10]
You would round to the 100,000th place to find a rounded number closest to 9,760,000 because the 60,000 makes the 700,000 because an 800,000.
6 0
3 years ago
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