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riadik2000 [5.3K]
3 years ago
6

Before the election, you want to determine the number of possible president/vice-president combinations for the honor society yo

u belong to. If both positions are chosen from ten people, how many combinations are possible?
Mathematics
1 answer:
Archy [21]3 years ago
3 0

90. For the first position,you can have one of 10 ppl in president/vice president. Then the remaining 9 ppl can be put in the remaining position. 10 * 9 = 90. If you need more explantion check these keywords. Factorial, permutations, combinations.

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Alexis has $3.25 in nickels and dimes. The number of dimes is 5 less than twice the number of nickels. Find the number of nickel
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Answer:

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Step-by-step explanation:

Let there be  x nickels

given that

The number of dimes is 5 less than twice the number of nickels.

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we know that

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then

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we know that

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then

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Total value of x nickel and 2x -5 dimes = 5x + 20x - 50 = 25x - 50

given that

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$1 = 100 cents

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25x - 50 = 325

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