SOLUTION: I need help asap but can't afford to pay money. Anyone willing? A change dispenser is giving back money in a variety of coins. A total of 120 coins are given back.25 coins are qua

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Question 893257: I need help asap but can't afford to pay money. Anyone willing? A change dispenser is giving back money in a variety of coins. A total of 120 coins are given back.25 coins are quarters, 65 coins are dimes, what is the probability that you will NOT get quarters or dimes?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The probability that you will get quarters or dimes is,
P%28D%2CQ%29=25%2F125%2B65%2F125
So the probability that you won't is this subtracted from 1.
P%28ND%2CNQ%29=1-25%2F125-65%2F125
P%28ND%2CNQ%29=%28125-25-65%29%2F125
P%28ND%2CNQ%29=35%2F125
P%28ND%2CNQ%29=7%2F25