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sadie960
02.08.2019 •
Mathematics
Twelve students sit for an exam which has a maximum score of 100. the average of the twelve scores achieved by the students in the exam was 95.what is the minimum a student could have scored?
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Ответ:
Ответ:
3/10, 2/5, 7/10, 3/4
Step-by-step explanation:
3/10 is 30%. 2/5 is 40%. 7/10 is 70%. 3/4 is 75%. Or you could multiply the denominators so that all denominators have the value of 20. Then it can be arranged. For 3/4, you can multiply everything by 5 to get 15/20. for 3/10, you can multiply everything by 2 to get 6/20. For 2/5, you can multiply everything by 4 to get 8/20. And for 7/10, you can multiply everything by 2 to get 14/20. Now you can arrange everything, starting with 3/10, then 2/5, then 7/10, and finally 3/4.