Hello,
mes angle AEC=(69+105)/2=87
mes angle AED=(74+112)/2=93
Answer A
3x-16x-24=-12x-30
-13x+12x=-30+24
-x=-6 /*(-1)
x=6
There would be 14 female and 7 male, so the total number of students is 21.
First define the variables:
c = amount of children
a = amount of adults
Next create the equations to satisfy the conditions:
1) Total group is 12 people:

2) Total cost is $100 with adults costing $10 and children being $6:

Answer:
4 1/2
Step-by-step explanation:
Just do the math work it out on paper and check it!