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Marrrta [24]
3 years ago
9

A fish tank at a pet store has 10 goldfish. In how many different ways can Brian choose 3 goldfish to buy?

Mathematics
2 answers:
Yuki888 [10]3 years ago
6 0
1000 different ways unless you can't choose the same as before it would be 720
padilas [110]3 years ago
4 0

Answer:

its 120


Step-by-step explanation:


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5 0
3 years ago
If a club consists of 11 members, how many different arrangements of president, vice-president, and secretary are possible?
lozanna [386]

Answer: 990

Step-by-step explanation:

Because the club has 11 members, there are 11 ways to choose the president.

Because 1 person is now the president, there are only 10 people left who are candidates for vice-president. Therefore, there are only 10 ways to choose the vice-president.

Because 1 person is president and another is vice-president, out of those 11 members, there are now only 9 people who can be candidates for secretary. Therefore, there are 9 ways to choose the secretary.

Multiply the ways to choose a president, vice-president, and secretary out of 11 club members, and you get:

11 * 10 * 9 = 990 (ways)

3 0
3 years ago
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