## Elementary Algebra

Let x represent the number of male students. The number of female students is 40 - x. Now, let’s set up a proportion with the ratio given and a ratio which compares the number of male students to the number of female students. $\frac{1}{4}$ = $\frac{x}{40 - x}$ To solve this equation, we equate the cross products. 1 $\times$ (40-x) = 4 $\times$ x 40 - x = 4x 40 = 5x Divide both sides by 5. 8 = x The number of male students is 8. The number of female students is 40 - 8 = 32.