There are 40 students in Joan’s class. She plans to invite them to her birthday party. She asked them to suggest a theme for her party. Three of every eight students suggested a rainbow-themed party. How many students suggested a rainbow-themed party? How many did not?(1 point)
To find the number of students who suggested a rainbow-themed party, you need to calculate three-eighths of the total number of students in Joan's class.
Three-eighths of 40 is (3/8)*40 = <<3/8*40=15>>15 students.
Therefore, 15 students suggested a rainbow-themed party.
To find the number of students who did not suggest a rainbow-themed party, you subtract the number of students who did from the total number of students.
40 students - 15 students = <<40-15=25>>25 students.
Therefore, 25 students did not suggest a rainbow-themed party. Answer: \boxed{15, 25}.