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lilai3
 4 years ago
Who <333333333333s communnicaaatioooooooooon?????????
How many phone numbers are possible for one area code if the first four numbers are 2021, in that order, and the last three numbers are178 in any order?
lilai3
 4 years ago
Who <333333333333s communnicaaatioooooooooon????????? How many phone numbers are possible for one area code if the first four numbers are 2021, in that order, and the last three numbers are178 in any order?

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jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.2There are 7 digits total. The first 4 are locked in at 2021 So there are 74 = 3 digits left The last three numbers are 178 in any order and there are 3! = 3*2*1 = 6 ways to order them So there are 1*6 = 6 different phone numbers.

lilai3
 4 years ago
Best ResponseYou've already chosen the best response.0Also for this question: Juan and Andrew are planning the schedule for a softball tournament. If there are 6 teams, how many different pairings could they make for the first tournament game? Is the answer to this one^^^^^ 6! which is 720 different pairings????? thank you got ur help!

jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.2There are 6 teams to choose for the first slot (say the "home" slot) and 61 = 5 teams to choose for the second ("away/visitor") slot So there are 6*5 = 30 different ways to do this.

lilai3
 4 years ago
Best ResponseYou've already chosen the best response.0oh so it's 30 instead for the answer to question number 2?

jim_thompson5910
 4 years ago
Best ResponseYou've already chosen the best response.2If it's all being played on one field, then order doesn't matter, so you would divide by 2 to avoid the double counting.
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