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Elan Coil [88]
3 years ago
10

Divide 60 in the ratio 3:9​

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
4 0

so the total number is 60, and we can just divide it by (3+9) and then distribute accordingly.

\stackrel{ratio~3:9}{60}\qquad \qquad 3\cdot \frac{60}{3+9}~~ :~~9\cdot \frac{60}{3+9}\implies 3\cdot \frac{60}{12}~~ :~~9\cdot \frac{60}{12} \\\\\\ 3(5)~~ : ~~9(5)\implies 15~~:~~45

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Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

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What is the probability that a randomly selected airfare between these two cities will be between $325 and $425?

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