The answer is D because both of those answer choices can be proved by looking at the triangle
Answer:
30
Step-by-step explanation:
boys: girls : total
3 7 3+7 =10
The total number of students must be a multiple of 10
The class size is between 22 and 34
The only multiple of 10 between those numbers is 30
10,20,<u>30</u>,40
Therefor the class size must be 30
Answer:
n = -9
Step-by-step explanation:
4(0.5n -3) = n-0.25 (12 - 8n)
First use the Distributive Law to expand the parentheses:-
2n - 12 = n - 3 + 2n
2n - 12 = 3n - 3
Subtract 2n from both sides:-
-12 = n - 3
Add 3 to both sides:-
-9 = n
I think 30.51 but use division to check
A+s=294
s=2a
Use substitution
a+2a=294
3a=294
a=98
Final answer: 98 adult tickets
