A vendor sold 99 hotdogs and hamburgers during a football game. If the ratio of hotdogs to hamburgers sold was 10:1, how many hamburgers did the vendor sell?
The ratio shows that if 11 items are sold, 10 of them are hotdogs and 1 is hamburger. That means hamburgers are (1/11)*Total items sold. In this case the hamburgers are (1/11)*99=99/11=9
