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Mathematics 5 Online
OpenStudy (anonymous):

A particular disc can be made to rotate at 2 different speeds. If it were made to rotate slower by 135 revolutions per hour, it would require an additional 2.7-hour to make 315 revolutions. Find the higher speed at which it can operate. MY TEACHER SAID WHOEVER GETS THIS GETS MAJOR EXTRA CREDIT!! I BEEN TRYING FOR HOURS I CAN'T GET. (to me these questions are insane but to the person who recently helped me on a question it was cake so i don't know) See who can help me solve this plz

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