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20.01.2020 •
Mathematics
Acollector has 100 movie posters and 80 band posters. she wants to sell 20 movie posters but still have her poster collection maintain the same ratio of 100: 80. if she sells 20 movie posters, how many band posters should she sell? complete the explanation to find out how many band posters she should sell
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Ответ:
100-20:?=5/4 or 80:?=5/4
80/5=16
16*4=64
80:64
80-64=16
16 band posters.
Ответ:
16 band posters
100:80=5/4
100-20:?=5/4 or 80:?=5/4
80/5=16
16*4=64
80:64
80-64=16
16 band posters.
Ответ: