In a high school pep band that consists of forty students, the number of seniors is five fewer than twice the number of juniors, and 30% of students in the band are neither juniors nor seniors.Find number of juniors in the band.

• no of junior x no of senior 2x-5 student neither junior nor senior 30%of40=(30÷100)×40=12 total=x+2x-5+12=40 3x+7=40 3x=33 x=11 11 is the answer
• 7 years agoHelpfull: Yes(2) No(1)
• Total number of students in the band is 40.
  30% of 40 = 12 are neither juniors nor seniors.
  if the number of juniors is 'x', then number of juniors is '2x-5'.
  Total number of juniors and seniors is "28= x+2x-5"
  x = 11
  Number of juniors in the band = 11.
• 7 years agoHelpfull: Yes(1) No(0)
• The number of junior students is 11.475 which is 11 approximately. The solution is thus;
  Let number of junior students =x
  Twice the number of junior students =2x
  Senior students is five fewer than twice the number of junior students=2x-5
  30% of the students in the band are neither senior students nor junior students means 30%(0.3)will be deducted from both senior students and junior students. The overall equation gives : ( 2x-5 -0.3) +(x-0.3)+(x) +(0.3)=40.
  X =11.475=11(apprx)
  Check:
  senior students=
  2x-5=2(11.475)-5=17.95
  =18(apprx)
  30% from senior students
  =17.95-0.3=17.65
  30% from junior students
  11.475-0.3=11.175
  Adding all this together =
  11.175+17.65+11.475=40.3=40(aprx)
• 7 years agoHelpfull: Yes(1) No(1)