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3 years ago

Are 2/7 and 6/21 equivalent ratios

Mathematics

2 answers:

muminat3 years ago

8 0

Yes because if you multiply 2/7 by 3 it equals to 6/21

ra1l [238]3 years ago

5 0

6 / 2 = 3
21 / 7 = 3

Yes, 2/7 and 6/21 are equivalent ratios. The second number is simply the first number tripled.

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mixas84 [53]

Answer:

-1

Step-by-step explanation:

(0, 0) and (3, 3)

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3 years ago

A class has 35 students, of which 16 are male and 19 are female. If 6 of the students are selected at random to form a committee

madreJ [45]

Answer:

The probability of choosing exactly 2 male and 4 female students = $\frac{\binom{16}{2}\times \binom{19}{4}}{\binom{35}{6}}$

Step-by-step explanation:

We are given that a class has 35 students

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We have to find the probability that exactly 2 male students are selected

Probability=P(E)= $\frac{number\;of\;favorable\;cases}{total\;number\;of\;cases}$

If we have to choose total 6 student in which 2 male and 4 female

Combination formula:

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

Using the formula

The probability of choosing exactly 2 male and 4 female students = $\frac{\binom{16}{2}\times \binom{19}{4}}{\binom{35}{6}}$

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2 years ago

What is the solution

lozanna [386]

Answer:

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Step-by-step explanation:

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