A middle school has a speech club with a total of 18 students. The ratio of girls to boys is 4:5. How many girls are in the speech club? How many boys are in the speech club? Justify your answers. (using linear equations)
the ratio is 4:5 so girls=4x and boys=5x (because you don't know how many boys or girls there are) then the equation would be 4x+5x=18 9x=18 so x=2 then 2 times 4 which equals 8 and 2 times 5 which equals 10
