Akira is selling raffle tickets to raise money for the school band. The odds aginst winning a prize in the raffle are 9:1. What is the decimal probability of winning a prize?
1/9 = 0.111
To find the decimal probability of winning a prize in the raffle, we need to convert the odds into a decimal form.
The odds against winning are given as 9:1. This means that for every 9 tickets that don't win a prize, there is 1 ticket that does win a prize.
We can calculate the total number of parts by adding the two sides of the ratio: 9 + 1 = 10.
To find the probability of winning, we divide the favorable outcomes (1) by the total outcomes (10): 1/10.
Therefore, the decimal probability of winning a prize in the raffle is 0.1 or 10%.
To find the decimal probability of winning a prize in the raffle, we need to convert the odds against winning into a fraction, and then convert that fraction to a decimal.
The odds against winning are given as 9:1, which means that for every 9 tickets that do not win, there is 1 ticket that wins. This can be represented as a fraction: 9/1.
To convert this fraction to a decimal, divide the numerator (9) by the denominator (1): 9 รท 1 = 9.
Therefore, the decimal probability of winning a prize in the raffle is 9.