What is the probability of drawing a spade from a standard deck of cards on a second draw, given that a spade was drawn on the first draw and not replaced? twelve over fifty one one over fifty two one over fifty one thirteen over fifty two?

Option A is the answer.

Step-by-step explanation:

The total number of spade cards in a deck = 13

And total number of cards in a deck = 52

When the first card drawn was a spade, and it is not replaced, then this leaves 51 cards behind and 12 spades.

Therefore, the probability of the second draw being a spade is:

=

So, option A is the answer.

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: