Jenny, Noah, and Mary baked cookies for the class party. They baked 15, 18, and 17 cookies respectively. What percent of all cookies did Jenny bake?

Respuesta :

7+18+15. You get 50. Then, since Jenny baked 15 cookies, (respectively) you take 15 over 50 and times it by 100 to get 30%.
30%. This is because she baked 15 out of 50.