a collector has 120 movie posters and 100 band posters. she wants to sell 24 movie posters but still have her poster collection
maintain the same ratio of 120:100. if she sells 24 movie posters, how many band posters should she sell?
1 answer:
120 movie posters
100 band posters
Movie:band=120:100=24:x
120/100=6/5
6•4=24
5•4=20
Movie:band=24:20
She should sell 20 band posters
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