Answer:
There are 33 parents attend the school brass band competition
Step-by-step explanation:
The attend = Children + Teachers + Parents
The number of attend = 272
The number of children who attend = 223
The number of teachers who attend = 16
The number of parents who attend = x
Substitute the numbers in the equation above
272 = 223 + 16 + x
223 + 16 = 239
272 = 239 + x
Subtract 239 from both sides
33 = x
x represents the number of the parents who attend
There are 33 parents attend the school brass band competition
