A collector has 90 movie posters and 60 band posters. She wants to sell 30 movie posters but still have her poster collection maintain the same ratio of 90:60. If she sells 30 movie posters, how many band

A collector has 90 movie posters and 60 band posters. She wants to sell 30 movie posters but still have her poster collection maintain the same ratio of 90:60. If she sells 30 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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A collector has 90 movie posters and 60 band posters. She wants to sell 30 movie posters but still have her poster collection maintain the same ratio of 90:60. If she sells 30 m…

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