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Taya2010 [7]
3 years ago
5

Pls answer me this all question correctly pls I beg you pls friends pls pls pls pls pls pls pls pls​

Mathematics
1 answer:
Andre45 [30]3 years ago
5 0

Answer:

a. \: 28

b. \: 5

Step-by-step explanation:

a. \: 88 \div 3 \frac{1}{7}

88 \div  \frac{22}{7}

Multiply the numerator by the reciprocal of the denominator.

88 \div  \frac{7}{22}

4 \times 7

28

b. \: 49 \frac{2}{9}  \div 9 \frac{4}{9}

\frac{425}{9}  \div  \frac{85}{9}

Multiply the numerator by the reciprocal of the denominator.

\frac{425}{9}  \times  \frac{9}{85}

5

<h3>Hope it is helpful...</h3>
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Answer:

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Step-by-step explanation:

The order in which the people are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

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Considering the eldest has to be there, 2 men from a set of 6 and 4 boys from a set of 5(excluding the youngest), so:

T = C_{6,2}C_{5,4} = \frac{6!}{2!4!} \times \frac{5!}{1!4!} = 3*5*5 = 75

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