Michele has $25. she plans to save $10 per week until she has a total of $75
Michele needs to save $75 - $25 = $<<75-25=50>>50 more.
So, it will take her $50 / $10 = <<50/10=5>>5 weeks. Answer: \boxed{5}.
So, it will take her $50 / $10 = <<50/10=5>>5 weeks. Answer: \boxed{5}.