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natita [175]
4 years ago
7

During the Computer Daze special promotion, a customer purchasing a computer and printer is given a choice of seven free softwar

e packages. There are 10 different software packages from which to select. How many different groups of software packages can be selected?
Mathematics
1 answer:
LiRa [457]4 years ago
4 0

Answer:

120 ways

Step-by-step explanation:

To solve the question above, we use combination formula:

Where ;

nCr = n! / (n-r)! r!

10C7 = 10! / (10 - 7)! 7!

10C7 = 10! / 3! 7!

10C7 = (10 * 9 * 8) / 3 * 2 * 1

10C7 = 720 / 6

= 120 ways

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To answer this question we have to first determine how many times 100 can go into 13,300. To find this we do the following:


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