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OpenStudy (anonymous):
a customer in a restrurant wants to leave a tip using a penny,nickel,dime,quaterr and a half dollar. if the customer insists on leaving only two coins , how many different possibilities are there
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OpenStudy (amistre64):
5 coins to pick from the 4 coins to pick from -------------------- 20 ways to pick the coins; some values will be the same tho
OpenStudy (amistre64):
lets try 5 group 2; 5C2 20/2! = 10
OpenStudy (amistre64):
so 10 different ways to leave a tip id assume is right
OpenStudy (anonymous):
yeah lol you mst love math
OpenStudy (amistre64):
i do :)
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