In a class, the ratio of girls to boys is 2: 3. if there are 30 students in the class, what is the number of boys?
explain to me how you got the answer! my friend and i are reviewing our homework and she answered 15 boys while i answered 10. i just want to know who's right, could you explain how you got the answer?

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Find the area of an equilateral triangle with a side of 6 inches