<h3>
Answer: 5/19</h3>
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Explanation:
There are A = 10 red cards out of B = 10+10 = 20 cards total.
A/B = 10/20 = 1/2 represents the probability of picking a red card.
After that card is selected, there are C = 10 black cards out of D = 20-1 = 19 cards left. The fraction C/D = 10/19 represents the probability of picking a black card where we did not put the first red card back.
Multiply the two fractions we found.
(A/B)*(C/D) = (1/2)*(10/19) = 10/38 = 5/19 is the probability of getting the first card that is red and the second card that is black.
I'm pretty sure it's 75 because 15x5=75 and 7+5=12
Answer: i dont this you can combine like terms for this question because none of these have the same variable or anything.
Answer:
B.24
Step-by-step explanation:
