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nikklg [1K]
3 years ago
12

4 3/5 times 7 expain

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
7 0
Convert the mixed number into a fraction. To do this, multiply the denominator by the whole number, and add the numerator. 5*4+3=23. Then put that over the denominator.

So we now have 23/5 * 7. To multiply fractions, multiply the numerators together and the denominators together.

(23*7)/5 = 161/5 or 32.2
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<h3>Answer: 680 different combinations</h3>

=======================================================

Explanation:

If order mattered, then we'd have 17*16*15 = 4080 different permutations. Notice how I started with 17 and counted down 1 at a a time until I had 3 slots to fill. We count down by 1 because each time we pick someone, we can't pick them again.

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