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

Respuesta :

20 band posters 

find what percent of band posters 24 equals so 100/120 the multiply that by 24 wich is 20. and because there is 100 band posters 20% equals 20 posters