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statuscvo [17]
2 years ago
13

Anna dad is 36. He is 9 times as old as she is .how old is Anna?

Mathematics
2 answers:
pashok25 [27]2 years ago
8 0

Answer:

Anna is 4 years old.

Step-by-step explanation:

36 ÷ 9 = 4

Dad is 36 and to know Anna's age we need to divide by 9.

riadik2000 [5.3K]2 years ago
5 0

Answer:

let anna age be x

so x (9)= 36

so anna age = 36/9 = 4

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CUALES SON LOS GRADOS PARA HACER UNA GRAFICA DE PASTEL, CON LOS SIGUIENTES PORCENTAJES( 20%,50%,10%)
svlad2 [7]

Answer:

Lo primero que debemos saber, es que la gráfica de pastel nos permite dividir a una población, la cual sería el 100%, en porcentajes menores que representan algo.

En este caso tenemos los porcentajes 20%, 50%, 10%  (notar que no suman 100%, entonces nos falta algún porcentaje)

Bueno, como sabemos el gráfico (el cual es un círculo) representa el 100%.

Y en un círculo, tenemos un ángulo de 360°

Entonces comenzamos con la equivalencia:

360° = 100%

Entonces, ¿a que grado corresponde el 50%? Planteamos la ecuación:

x = 50%

Si tomamos el cociente entre las ecuaciones:

x = 50% y  360° = 100%

obtenemos:

x/360° = 50%/100%

resolviendo para x, obtenemos:

x = (50%/100%)*360° = 0.5*360° = 180°

Para los otros porcentajes hacemos lo mismo.

Para el de 20% tenemos:

y = 20%

planteamos la ecuación:

y/360° = 20%/100%

y = 0.2*360° = 72°

Finalmente, para el de 10% tendremos:

z = 10%

planteando la ecuación como antes:

z/360° = 10%/100%

z = 0.1*360 = 36°

Asi, hemos encontrado los grados correspondientes para cada porcentaje.

8 0
3 years ago
PLS HELP it's DUE TODAY
charle [14.2K]

Answer:

Third answer

Step-by-step explanation:

1 x 7 = 7

36 x 7 = 252

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The relevant rules of exponents are
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.. t^a·t^b = t^(a+b)

You have
.. (t^-4)^-9·t^2
.. = t^((-4)*(-9) +2)
.. = t^38 . . . . . . . . . . . selection C
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zzz [600]

Answer 5x 1y 5 1

Step-by-step explanation:

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Answer:

c

Step-by-step explanation:

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