Answer:
<em>80 - 2x</em>
Step-by-step explanation:
Given
Total number of people = 80 people
Total men = x men
Total women = x women
Let the number of childeren be c
x + x + c = 80
Make c the subject of the formula
c = 80 - (x+x)
c = 80 - 2x
<em>Hence the total children attending is 80 - 2x</em>
So 51+51=102 and then 10+10+10+10=40, and 102+40=142. So they will need to take 2 buses and 4 vans.
hope I helped
Answer:
??????????????????? 3+1
Step-by-step explanation:
