In order to burn calories and lose weight, Hannah is trying to incorporate more exercise into her busy schedule. She has several short exercise DVDs she can complete at home. Last
week, she burned a total of 470 calories by doing 1 body sculpting workout and 4 yoga
sessions. This week, she has completed 4 body sculpting workouts and 4 yoga sessions and
burned a total of 680 calories. How many calories does each workout burn?