Answer:
15
Step-by-step explanation:
Let the number of adult tickets be x while children ticket be y. Since the total tickets were 20 then we can form the equation
x+y=20
Making x the subject then x=20-y
Considering the cost of each ticket
15x+10y=225
Substituting x with 20-y then
15(20-y)+10y=225
300-15y+10y=225
Collecting like terms
300-225=15y-10y
75=5y
Y=75/5=15
To find x, we already know that x=20-y hence x=20-15=5
Therefore, children tickets are 15 while adult tickets are 5.
The question only needs us to know the children tickets, y which is 15
Step-by-step explanation:
2 = 3 - q
1 = (3 - q)×1/2
9 =(3 - q) ×1/2×9
9 = 27 - Q/2
Answer:

Step-by-step explanation:
The three interior angles in a triangle will always add up to 180°.
Therefore

The answer is the last one (-5x7)!
Answer:

Step-by-step explanation:
We want to evaluate the limit:

To do so, we can divide everything by <em>x</em>². So:

Now, we can apply direct substitution:

Any constant value over infinity tends towards 0. Therefore:

Hence:

Alternatively, we can simply consider the biggest term of the numerator and the denominator. The term with the strongest influence in the numerator is 3<em>x</em>²<em>, </em>and in the denominator it is <em>x</em>². So:

Simplify:

The limit of a constant is simply the constant.
We acquire the same answer.