Question 979638
x=number of eight graders
y=number of seventh graders
.06x+.03y=total number of students that are in mathcounts
x=1.5y
.06*1.5y+.03y=.12y
z=percentage of the total number of students that participated in mathcounts
z(x+y)=.12y
z*2.5y=.12y
z=.048
The percentage rounded will be .05