Mathematics: Four fifths of the members of a club are female. three-quarters of these females are over 20 years old. what fraction of the members of the club are females over 20 years old? show your working ! so much!

Four fifths of the members of a club are female.

Ответ:

tinaxiao

30.12.2021

No. of FEMALES =4/5(no. of members in club)
in that
no. of females over 20 years old=1/3(no. of FEMALES)=1/3(4/5(no. of members in club))
=4/15(no. of members in club)
no. of females over 20 years old/no. of members in club=4/15

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Ответ:

AdoNice

17.07.2021

Mathematics

5 gallons

Step-by-step explanation:

$\dfrac{5/12\ gallons}{1/24\ minutes}=\dfrac{5}{12}\times \dfrac{24}{1}=\dfrac{10\ gallons}{1\ minute}\\\\\\\dfrac{10\ gallons}{1\ minute}=\dfrac{x}{1/2\ minute}\\\\\\5\ gallons = x$

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Four fifths of the members of a club are female. three-quarters of these females are over 20 years old. what fraction of the members of the club are females over 20 years old? show your working ! so much!

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