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
Sauron [17]
3 years ago
12

Um homem está localizado a 300 m de uma estrada linear (reta). Nessa estrada está localizada a sua esposa a 500 m do homem. Ambo

s caminham em sentido a um restaurante que se encontra na estrada e está a mesma distância do dois. Qual é essa distância em metros?
A) 400m
B) 300m
C) 312,5m
D) 325m
E) 87,5m

Mathematics
1 answer:
lukranit [14]3 years ago
4 0

Answer:

The distance of the restaurant from the man and woman = 312.5 m

Option C is correct.

A distância do restaurante do homem e da mulher = 312,5 m

A opção C está correta.

Step-by-step explanation:

English Translation

A man is located 300 m from a linear (straight) road. On that road his wife is located 500 m from the man. Both walk towards a restaurant that is on the road and is the same distance from the two. What is this distance in meters?

A) 400m

B) 300m

C) 312.5m

D) 325m

E) 87.5m

Solution

A diagram showing the scenario described, is presented the attached image.

From the attached image, x is the distance of the restaurant from both the man and the woman. So, there are two right angled triangles,

- The bigger one with hypotenuse 500 m and other side 300 m, the third side is calculated as

(Third side)² = 500² - 300² = 160000

Third side = 400 m

- The smaller right angled triangle, with hypotenuse x m and other sides 300 m & (400 - x) m

(400 - x)² + 300² = x²

160000 - 800x - x² + 90000 = x²

800x = 160000 + 90000 = 250000

x = (250000/800) = 312.5 m

Hence, the distance of the restaurant from the man and woman = 312.5 m

In Portugese/Em português

Um diagrama mostrando o cenário descrito é apresentado na imagem em anexo.

Na imagem em anexo, x é a distância do restaurante do homem e da mulher. Então, existem dois triângulos retângulos,

- Quanto maior com hipotenusa 500 me outro lado 300 m, o terceiro lado é calculado como

(Terceiro lado) ² = 500² - 300² = 160000

Terceiro lado = 400 m

- O triângulo angular direito menor, com hipotenusa x me outros lados 300 m & (400 - x) m

(400 - x)² + 300² = x²

160000 - 800x - x² + 90000 = x²

800x = 160000 + 90000 = 250000

x = (250000/800) = 312.5 m

Portanto, a distância do restaurante do homem e da mulher = 312,5 m

Hope this Helps!!!

Espero que isto ajude!!!

You might be interested in
The half-life of Radium-224 is
Sholpan [36]

Answer:

10.98 days is 10.98/3.66 = 3 half life periods and half of the mass is lost at each half life. You can do this in your head. I have!!

Step-by-step explanation:

8 0
2 years ago
-v + 5 + 6v = 1 + 5v + 3
Dima020 [189]

Answer:

v does not exist

Step-by-step explanation:

5v+5=4+5v

there is no v

5 0
3 years ago
What is the missing numerator? blank over five plus eighteen over twenty equals thirty over twenty 8 5 3 2
Oliga [24]

Given:

\dfrac{?}{5}+\dfrac{18}{20}=\dfrac{30}{20}

To find:

The missing value.

Solution:

Let x be the missing value.

We have,

\dfrac{x}{5}+\dfrac{18}{20}=\dfrac{30}{20}

\dfrac{x}{5}+\dfrac{9}{10}=\dfrac{3}{2}

Subtract \dfrac{9}{10} from both sides.

\dfrac{x}{5}=\dfrac{3}{2}-\dfrac{9}{10}

\dfrac{x}{5}=\dfrac{15-9}{10}

\dfrac{x}{5}=\dfrac{6}{10}

\dfrac{x}{5}=\dfrac{3}{5}

Multiplying both sides by 5, we get

x=3

So, the missing value is 3.

Therefore, the correct option is C.

8 0
3 years ago
What is 20% of 82? <br> please help that would be very nice of you!
horsena [70]
It is 16.4 you’re welcome
5 0
3 years ago
Read 2 more answers
If your pencils is 20 centimeters long how many millimeters is it
Alex Ar [27]
HI


the answer is 200 millimeters

<333
4 0
3 years ago
Read 2 more answers
Other questions:
  • Sandy works at a clothing store. She makes $9 per hour plus earns 10% commission on her sales. She worked 75 hours over the last
    14·1 answer
  • If x+y=10 and x-y=6 , what is the value of x³-y³​
    11·1 answer
  • Question 1 (1 point)<br> Evaluate if t=-2, x=3 and z=5<br> 4z + 3x -t
    13·1 answer
  • Consider the following equations:
    14·1 answer
  • 2(y + 5) = 18 - 12
    13·1 answer
  • What is 342.5752 divided by 4
    5·2 answers
  • Identify the relation that is also a function.
    8·1 answer
  • Simplify<br> 20<br> What the answer?
    9·2 answers
  • Please answer this quickly 23 x 18
    9·2 answers
  • <img src="https://tex.z-dn.net/?f=8mx%5E%7B2%7Dnx%5E%7B4%7D" id="TexFormula1" title="8mx^{2}nx^{4}" alt="8mx^{2}nx^{4}" align="a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!