SOLUTION: Rosie has an average of 30 out of 40 for her first six assignments. In order to be top of the class she needs an average of 31. What score does she need in her next assignment?
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Question 1035577: Rosie has an average of 30 out of 40 for her first six assignments. In order to be top of the class she needs an average of 31. What score does she need in her next assignment?
You can put this solution on YOUR website! For all seven to average 31, she would need
31 * 7 = 217 points total.
Well, she has 30 * 6 = 180 so far.
Thus she would need
217-180 = 37 points on her last one to average 31.
