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kvasek [131]
4 years ago
5

Can someone help please? I'll give brainliest to the best answer.

Mathematics
1 answer:
pychu [463]4 years ago
7 0
A. What angle of rotation maps P onto P'?

Answer: By 40 degrees. Why? Since the angle from P' to P is 2h. and 40min, We can count that as a "slice of pie". Now, since it was all the way to 24 hours, we just have to add that all up.

2h. 40 min. = 160 mins.

24 hrs. = 1440 mins.

1440 mins. = pizza
160 mins. = slice

1440 ÷ 160 = 9

That means, there are 9 slices. Now...

Entire pizza = 360°

360° ÷ 9 = 40°

Voila. 40°.

B.What are the x- and y- coordinates of P' to the nearest thousandth?

Answer: The x- coordinate is 0.833, and the y- coordinate is 0.666. Why? WELL. That's a bit tricky.

Every square side in the coordinate plan is approximately 0.333 unit. Y is two units, and X is 2 and a half units.

0.333 x 2 = 0.666

0.333 x 2.5 = 0.833

C. What translation rule maps P onto P'?

Answer: Rotation around a point. If we saw earlier, it's in a 360° circle. If the North Star is the vertex, then we know the translation rule is a rotation around the point, specifically, the North Star. That way, P will go onto P'.

I hope this helped. :)
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An empty box weighs 200g the box is filled with birthday party goozy bags and now weighs 6.2kg Each goody bag weighs 150Work out
otez555 [7]
For this case, the first thing we are going to do is define variables.
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 x: number of birthday party goozy bags
 y: total weight
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 6200 = 150x + 200
 Clearing x:
 x = (6200-200) / (150)
 x = 40
 Answer:
 
there are 40 goody bags inside the box
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5 0
4 years ago
three friends shared 4 pies equally. Each person got 4/3 pies. How can you write how much pie each person got as a mixed number?
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                                           1
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                                           3              I hope this helps. thank you Bye
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Read 2 more answers
Resolver el siguiente sistema de ecuación:
snow_tiger [21]

Answer:

x=-1\\y=4

Step-by-step explanation:

\frac{5x+2y}{3}=1

\frac{2x+y}{2}=1

Vamos a utilizar el método de sustitución. Vamos a despejar la segunda ecuación por alguna de las variables. Elegiré la y porque esta sola.

\frac{2x+y}{2}=1

Vamos a empezar por eliminar ese 2 del denominador. Para hacer esto, multiplicamos por 2 ambos lados de la ecuación.

2x+y=1*2

2x+y=2

Como vamos a despejar la y, restamos 2x en ambos lados.

y=2-2x

Listo.

------------------------------------------------------------------------

Procedemos a reemplazar el valor de y en la primera ecuación.

\frac{5x+2y}{3}=1

\frac{5x+2(2-2x)}{3}=1

\frac{5x+4-4x}{3} =1

Procedemos a operar términos semejantes.

\frac{x+4}{3} =1

Nos deshacemos del 3 multiplicando.

x+4=1*3\\x+4=3

Restamos 4

x=3-4\\x=-1

-----------------------------------------------------------------------------

Una vez encontrado el valor de x, procedemos a reemplazar en cualquier ecuación para encontrar el valor de y. Usaré la segunda ecuación.

\frac{2x+y}{2}=1

\frac{2(-1)+y}{2}=1

Procedemos a resolver;

\frac{-2+y}{2} =1

Multiplicamos por 2.

-2+y=1*2

-2+y=2

Sumamos 2

y=2+2\\y=4

-------------------------------------------------------------------------------

Para comprobar que los valores son correctos, reemplazamos ambos valores en cualquier ecuación y el resultado debe ser igual.

Usaré la primera.

\frac{5x+2y}{3} =1

\frac{5(-1)+2(4)}{3} =1

Resolvemos;

\frac{-5+8}{3} =1

\frac{3}{3}=1

1=1

6 0
4 years ago
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