There are 13 spades in a standard deck of cards, so if the first one is a spade, there are 12 spades left.
So the chances of getting another one would be 12/52 because there are 52 cards in a standard deck of cards.
Reduced, your answer is 3/13
Answer:
.7 or 70%
Step-by-step explanation:
17/30 + 17/25 + 38/50 + 18/25 = 2.727
2.727 divided by 4 (the amount of addends) = .7
Given:

To find:
The missing length marked with a question mark.
Solution:
Let x be the missing value.
We have,

Corresponding sides of similar triangles are proportional, so

Using this, we get

On substituting the values, we get


On cross multiplication, we get




Therefore, the missing length is 56 units.
8 because 20 divided by 5 (for the ratio) is 4 and then you solve the second part of the ratio so you do 4 times 2
Answer:
La longitud del lado del octágono es de 28 unidades.
Step-by-step explanation:
Si las longitudes de los dos lados pertenecen a un octágono regular, entonces se satisface la siguiente condición:
(1)
A continuación, despejamos
en (1):


Ahora, determinamos la longitud del lado del octágono: (
)


La longitud del lado del octágono es de 28 unidades.