The ratio of girls to boys in a school is 5:4. If there 918 students at the school. How many are girls
Let y be the number of boys , then 918-y eqauls the number of girls..... OK so far??
Then you can set up a ratio:
(918-y)/y = 5/4 You see how to get the naswer NOW?
Continuing to solve for y
918-y = 5/4y
918 = 5/4y + y
918 = 9/4 y
918 (4/9) = y Then you can find the number of girls is as described above : (918 - y)
918
