Answer:
Its C
Step-by-step explanation:
Just took the test
Plug 7 into each y. 9(7) -4(7) +3
63-28+3
The answer is 38
Answer:
child tickets: 115
adult tickets: 175
Step-by-step explanation:
number of child tickets = x
number of adult tickets = y
(value of child ticket [8] * number of child tickets [x]) + (value of adult ticket [8.5] * number of adult ticket [y]) = total value (2407.50)
8x + 8.5y= 2407.50
290 (total number of tickets) = x (number of child tickets) + y (number of adult tickets)
290 = x+y
system of equations: 8x + 8.5y= 2407.50
290 = x + y
solve equation:
x = 115
y = 175
Answer:
Option A ![sin(A)=\frac{9}{15}](https://tex.z-dn.net/?f=sin%28A%29%3D%5Cfrac%7B9%7D%7B15%7D)
Step-by-step explanation:
we know that
![tan(A)=sin(A)/cos(A)](https://tex.z-dn.net/?f=tan%28A%29%3Dsin%28A%29%2Fcos%28A%29)
Solve for sin(A)
![sin(A)=tan(A)cos(A)](https://tex.z-dn.net/?f=sin%28A%29%3Dtan%28A%29cos%28A%29)
we have
![tan(A)=\frac{9}{12}](https://tex.z-dn.net/?f=tan%28A%29%3D%5Cfrac%7B9%7D%7B12%7D)
![cos(A)=\frac{12}{15}](https://tex.z-dn.net/?f=cos%28A%29%3D%5Cfrac%7B12%7D%7B15%7D)
substitute
![sin(A)=\frac{9}{12}(\frac{12}{15})](https://tex.z-dn.net/?f=sin%28A%29%3D%5Cfrac%7B9%7D%7B12%7D%28%5Cfrac%7B12%7D%7B15%7D%29)
![sin(A)=\frac{9}{15}](https://tex.z-dn.net/?f=sin%28A%29%3D%5Cfrac%7B9%7D%7B15%7D)
0.31 rounded to the nearest tenth would be 0.3
This Chart should help you in the future: