An easy way is to do it, if you get confused by multiplying fractions, is by turning the fractions into decimals. Since you are trying to find N you want to multiply the 1/5 by the 1/3.
1/5 = 0.2
1/3 = 0.33333333333333333333333333333333
if you multiply those you get 0.06666666666666666666666666666667 which when put into a fraction it equals 1/15
but if you don't want to do that just try to remember that you want to get by itself. and when multiplying fractions in this situation the bottom numbers only matter.. so 5 x 3 = 15 1/15
would you like me to put it in a document to show you?
X+x+54=180
2x+54=180
2x=126
x=63
63+54=117
one angle is 63, the other is 117
The least number of socks that rob can remove to guarantee he removed a pair of white socks without looking is15 socks
Answer:
Step-by-step explanation:
No of ways in which 5 cards are chosen is 
No of ways in which at most 4 cards are spades 
Total ways-5 spades
Probability that at most 4 cards are spade 
4/x-1 would be the equation written from that statement.
