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konstantin123 [22]
3 years ago
5

Megan is taking piano lessons and gymnastics lessons. She has piano lessons every 7 days and gymnastics every 3 days. How often

does she have both on the same day?
Mathematics
2 answers:
mario62 [17]3 years ago
6 0
Every 3 weeks=21 days. this is because 21 is the lowest common factor of 7 and 3
bija089 [108]3 years ago
6 0
She has both in the same day every 21 days :)
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If there are 125 girls, and the ratio is boys to girls, then you can divide 125 by 5 to get the multiplication factor. This would be 25. Now you can multiply 25 by 4 to get how many boys were in the gym, which would be 100. To get back to your original ratio, you can divide 100/125 by 25 on top and bottom to get 4:5, or 4/5. :)

Step-by-step explanation:


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