There are 4/5 as many men as women in your Biology class. What fraction of the class are women?
What are the steps in solving this
2007-08-02 21:50:55 · 6 answers · asked by blah 3 in Science & Mathematics ➔ Mathematics
Let number of women = x
Number of men = (4 / 5) x
Total = (9 / 5) x
Fraction that are women = x / [ (9 / 5) x ] = 5 / 9
2007-08-02 22:26:22 · answer #1 · answered by Como 7 · 1⤊ 0⤋
Let numer of women be x.
Number of men = (4/5)x
total class = x+(4/5)x = (9/5)x
Number of women as fraction of the class
=x/{(9/5)x}
=5/9
2007-08-03 04:54:57 · answer #2 · answered by Jain 4 · 0⤊ 0⤋
The class is 5/9 women, and 4/9 men.
I think when you look at these numbers, the reasoning will be apparent.
2007-08-03 04:55:02 · answer #3 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
let x be the number of women
then 4x/5 are the number of men.
Fraction of women = x/(x+4x/5)
=5x/9x
=5/9
2007-08-03 04:55:01 · answer #4 · answered by shubham_nath 3 · 0⤊ 0⤋
x = number of females
4/5 x + x = 100% = 1
.8 x + x = 1
1.8 x = 1
x = 1/1.8 = 5/9
2007-08-03 04:59:53 · answer #5 · answered by Anonymous · 0⤊ 0⤋
1/5 because 5/5 are all class
2007-08-03 05:05:07 · answer #6 · answered by Anonymous · 0⤊ 3⤋