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MaRussiya [10]
3 years ago
13

Problema: Se guarda una moneda antigua en una caja cubica de tal forma que el contorno de la moneda toca las 4 paredes de la caj

a, si la base de la caja tiene un perímetro de 24 cm ¿Cual es el área de la moneda?
Mathematics
1 answer:
nikdorinn [45]3 years ago
3 0

Answer: 50.24 cm^2

Step-by-step explanation:

This can be translated to:

An old coin is kept in a cubic box in such a way that the outline of the coin touches the 4 walls of the box, if the base of the box has a perimeter of 24 cm. What is the area of ​​the coin?

The fact that the coin touches the interior of the box means that the diameter of the coin is equal to the side lenght of the box.

The perimeter of the box is 24 cm, and the perimeter of a square is equal to:

P = 4*L

where L is the side lenght of the square.

24 cm = 4*L

L = 24cm/4 = 8cm

Now we know that the diameter of the coin is 8cm

Now, the area of a circle (the coin) is equal to:

A = 3.14*(d/2)^2

where d is the diameter, so we have:

A = 3.14*(4cm)^2 = 50.24 cm^2

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Aliun [14]
The answer is (c). The picture shows that all of the angles and sides are equal, meaning that it's both equilateral and equiangular.
5 0
3 years ago
What number does y stand for in this equation?<br> 2y - 7 = 35
timama [110]

Answer:

y stands for 21 in this equation.

Step-by-step explanation:

2y - 7 = 35

2y = 42

y = 21

3 0
3 years ago
Read 2 more answers
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olga nikolaevna [1]

Answer: Idk if this is right but the answer is 21.2, Each time you add 4.8cm

Step-by-step explanation: 4 cups=11.6cm  

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6 0
3 years ago
9+8{7•6-5[4+(3-2•1)]}=?​
34kurt

Answer:

145

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

9+8{7*6-5[4+(3-2*1)}]}

9+8{7*6-5[4+1]}

9+8{7*6-25}

9+8{42-25}

9+136

145

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!

5 0
3 years ago
Simplify |−3 − 8|<br> A. –11<br><br> B. –5<br><br> C. 5<br><br> D. 11
bazaltina [42]

Answer:

<h3>It's answer is D. 11 </h3>

Here we can see there is modulus so

while doing calculation

| -3-8 |

| -11 |

Here it is modulus so - changes into +

so it's answer is 11.

8 0
3 years ago
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