Answer:
Number of boys in 7th grade=34 boys
Number of girls in 7th grade=51 girls
Step-by-step explanation:
Total Number of students in 7th grade=Number of boys+Number of girls
where;
Total number of students in 7th grade=85 students
Number of boys=x
Number of girls=(1 1/2)×Number of boys=(3/2)×x=1.5x
Replacing;
85=x+1.5x
2.5x=85
x=85/2.5
x=34
Number of boys=x=34
Number of girls=1.5x=1.5×34=51
Number of boys in 7th grade=34 boys
Number of girls in 7th grade=51 girls
