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Mathematics 7 Online
OpenStudy (anonymous):

please help me figure this out, A container holds 15 pennies, 8 nickels, and 10 dimes. You will randomly select two coins without replacement. How many ways can you select the coins? How many ways can you select exactly 1 nickel? What is the probability that you select 2 pennies? What is the probability that you select a dime and then a penny?

OpenStudy (mauraward123):

How many ways can you select the coins? 15*8*10= The answer

OpenStudy (anonymous):

Okay, got that

OpenStudy (anonymous):

How many ways can I select exactly one nickel?

OpenStudy (debbieg):

That is not the number of ways to select the coins. you are selecting 2 coins, without replacement. You have 15 identical items, 8 identical items, and 10 identical items. This is a combination formula with identical items.

OpenStudy (anonymous):

Makes sense

likeabossssssss (likeabossssssss):

welcome to os

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