Question

in a class of 43 students,the number of males is 8 less than twice the number of females.how many females and how many males are there in the class ?

Answer 1

x = males, y = females
x=2y-8
x+y=43
solve w/ augmented matrix / graphing / whatevs u want to
x = 26, y = 17

Answer 2

thank you :)

Answer 3

m is males.

m+8 = 2f so f is (m+8)/2

m+f = 43, get m and sub for y.

Answer 4

Sub for f, sorry.

Answer 5

number of female is 26
number f male is 17

male=2x-8
female=2x

2x+(2x-8)=43
2x+2x-8=43
4x-8=43
4x=51
x=12.8
so female is 2x=2(12.8)
=26
male is 43-26=17