Mathematics, 23.03.2021 19:20, joooselinn9688

3 Sally has 18 coins in her purse. There are 6 pennies, 9 nickels, and 3 dimes. Without looking, she grabs one coin, puts in back, and then grabs another. What is the probability that Sally will select a nickel first and then a dime? Your answer should be simplified. OX1

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3 Sally has 18 coins in her purse. There are 6 pennies, 9 nickels, and 3 dimes. Without looking, she...