Answer:
9 and 3
Step-by-step explanation:
Let the first number be x and second number be y hence their sum
x+y=12 ......(1)
Making x the subject theb x=12-y
Three times be first number is 3x
3x-y=24.......(2)
Adding the two sets of equations then
4x=36
X=36/4=9
The second number will be 12-9=3
So the first number is 9 and second is 3
4.375= 8.75h
4.375/8.75= h
0.5 = h
If there are 9 students then they each get 20 and if there are 6 they each get 30. If that answers the question.
