You get scores of 72 and 88 on 2 science tests. You have to have an average of at least 85 to not be grounded by your parents. What score do you need to make on your next test to not be grounded?
Answer: 95 1. Add both test scores (72 & 88) together. You get 160 2. Then you divide 160 by 2. You get an average of 80. 3. When you add 72, 88, and 95 together you get 255. 4. You then divide 255 by 3 5. You get an average of 85
