Answer: 35 girl costumes, 25 boy costumes.
Step-by-step explanation:
60 split into 2 groups is 30 each.
Add 5 to one group and subtract 5 from the other to get a difference of 10.
Girls group is 30+5=35
Boys group is 30-5=25
Answer:
They will need 25 boy costumes and 35 girls costumes.
Step-by-step explanation:
There are x boys.
There are x + 10 girls.
Altogether, there are x + x + 10 students.
Altogether, there are 60 students, so
x + x + 10 = 60
2x + 10 = 60
2x + 50
x = 25 (boys)
x + 10 = 35 (girls)
