sixth graders
There are 63 sixth graders in the play - 90*70% = 63.
no..
most sixth graders are about 10 to 12 years old(including 11)
Assuming the math club had 15 sixth graders, 12 seventh graders, 13 eighth graders and no other members, then: There are 15 + 12 = 27 students that are sixth or seventh graders. There are 15 + 12 + 13 = 40 members. So the fraction that are sixth or seventh graders is 27/40. Using long division, 27/40 = 0.675 = 67.5% So 67.5% of the math club members are sixth or seventh graders.
About 3/4 of all sixth graders want to try out for sports
13
all the 6th graders in the world
YES
Immaturity
thousands
It really depends on the school they go to. The sixth graders in my town go to a school dance, but in some other towns they may not.