Answer: 94 child tickets
<u>Step-by-step explanation:</u>
Let x represent child tickets
Let y represent adult tickets
Cost Equation: 5.70x + 9.75y = 1306.10
Quantity Equation: x + y = 173
Solve the system of equations using the elimination method:
Multiply the Quantity Equation by -5.70
5.70x + 9.75y = 1306.10
<u> -5.70x - 5.70y</u> = <u>-986.10</u>
4.05y = 320.00
<u> ÷4.05 </u> <u>÷4.05 </u>
y = 79
x + y = 173
x + 79 = 173
x = 94
Equate what is inside cosine with 
, base period and solve for x,
Hope this helps :)
It’s the last one 7 sqrt5+8sqrt2/27
If it the one that says which double fact should you use for
6+5
it would be 5+5
which is 10 and then you could add the 1
First of all i think theres a mistakein the question;
i think it is sin θ =
and then sin 30° =
thus θ= 30°
