IHATEIXL
05.05.2020 •
Mathematics
Melanie sold half of her comic books and then bought 9 more. She now has 17. How many did she begin with?
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Ответ:
16
Step-by-step explanation:
You need to work backwards and do the opposite
So, first do subtraction since Melanie added to her collection. SO do the opposite of addition.
17-9=8
Then, since she sold half of her comics, and she is dividing her collect, you multiply 8 with 2.
8 x 2=16
Final answer
16 comics
Ответ: