A collector has 180 movie posters and 100 band posters. She wants to sell 36 movie posters but still have her poster collection maintain the same ratio of 180:100. If she sells 36 movie posters, how many band posters should she sell? Explain?
the word problem is based on division ratio so u have to divide by five so 100 divided by five is 20 meaning the collector has to sell 20 band posters.
