12/15 + 1/10 <span>and got an answer of 13/25
</span><span>12/15 is close to 1, but he got an answer of 13/25 is close to 1/2
13/25 < 12/15
Answer:
</span><span>
His answer is not correct because the sum cannot be less than either addend.</span>
Difference means subtract so we can reduce the choices right away to first and third choices. of the only the first is the difference of squares, namely x² - 4²
Answer:
3 
Step-by-step explanation:
A simple question, but I decided to answer.
Good Luck!!
All socks together: 13
Black socks: 3
Probability to pick out black socks: 3/13
After one pick out (You picked out a pair of black socks):
Probability to pick out black socks: 2/12
Multiply them:
2/12 * 3/13 = 1/26 ≈ 0,038
