The winner of a raffle will receive a 21- foot outboard boat. If 3000 raffle tickets were sold and you purchased 20 tickets, what are the odds against your winning the boat

149 : 1 is the odds against your winning the boat.

Step-by-step explanation:

It is given that,

The winner of a raffle will receive a 21-foot outboard boat.

The odds against any event is the ratio of the unfavorable outcomes to the favorable outcomes.

The number of possible outcome that you will win ⇒ 20

The number of possible outcomes that others wins ⇒ 3000-20 = 2980

To find the odds against your winning the boat :

Number of possible outcomes that one of the others wins : Number of possible outcome that you will win.

⇒ 2980 : 20

⇒ 149 : 1

Therefore, the odds against your winning the boat is 149 : 1

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363