At a particular restaurant, each mini hotdog has 100 calories and each chicken wing has 50 calories. A combination meal with chicken wings and mini hotdogs is shown to have 600 total calories and twice as many chicken wings as there are mini hotdogs. Graphically solve a system of equations in order to determine the number of mini hotdogs in the combination meal, x, x, and the number of chicken wings in the combination meal, yy.