bettybales1986
23.10.2019 •
Mathematics
Atheif steals an atm card and must randomly guess the correct six -digit pin code from a 5-key keypad. repetition of digits is allowed. what is the probability of a correct guess on the first try?
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Ответ:
Let c = # of children's tickets sold
250 + c = a
c + 250 + c = 2c + 250 = 2750
2c = 2500
c = 1250
a = 1250 + 250 = 1500
Least number of adult tickets that the cashier needs to sell for the receipts to be $2750 is 1500.