3 years ago

Please help!! I don’t understand

Mathematics

1 answer:

solmaris [256]3 years ago

5 0

Answer:

A: No positive numbers

Step-by-step explanation:

Hopefully this helps!

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Answer:

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Step-by-step explanation:

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4 years ago

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The four-member math team at Pecanridge Middle School is chosen from the math club, which has three girls and five boys. How man

cestrela7 [59]

Answer:

$Total\ Selection = 30\ ways$

Step-by-step explanation:

Given

Girls = 3

Boys = 5

Required

How many ways can 2 boys and girls be chosen?

The keyword in the question is chosen;

This implies combination and will be calculated as thus;

$Selection =\ ^nC_r = \frac{n!}{(n-r)!r!}$

For Boys;

n = 5 and r = 2

$Selection =\ ^5C_2$

$Selection = \frac{5!}{(5-2)!2!}$

$Selection = \frac{5!}{3!2!}$

$Selection = \frac{5 * 4 * 3!}{3!*2 * 1}$

$Selection = \frac{20}{2}$

$Selection = 10$

For Girls;

n = 3 and r = 2

$Selection =\ ^3C_2$

$Selection = \frac{3!}{(3-2)!2!}$

$Selection = \frac{3!}{1!2!}$

$Selection = \frac{3 * 2!}{1 *2!}$

$Selection = \frac{3}{1}$

$Selection = 3$

Total Selection is calculated as thus;

$Total\ Selection = Boys\ Selection * Girls\ Selection$

$Total\ Selection = 10 * 3$

$Total\ Selection = 30\ ways$

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4 years ago

In Jayce's favorite video game, he collects stars to earn points. Today, he collected 80 silver stars and earned 160 points. He

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Silver stars are worth 2 and gold stars are each worth 5

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3 years ago

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Classify 89, 16, 17, and 25 as a prime or composite

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89 is prime 16 is composite 17 is prime 25 is composite

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There are 9.88 grams of sugar in 4 servings of grapes. How many grams of sugar are in a single serving of grapes?

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Ok so grapes,

We have 4 servings and 9.88 grams total, so to find one serving we just need to divide by 4.

9.88/4 = 2.47 per serving

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4 years ago