Answer:
if you multiply both sides by cos 30
LHS =
x cos 30
= sin 30
RHS = tan 30 x cos 30
=
x cos 30
= sin 30
= LHS
Therefore, sin30° / cos30° = tan30 °
Answer:
Step-by-step explanation:
First you determine the variables x and y as:
x: the value for student tickets
y: the value for chaperone tickets.
Knowing that student tickets cost $ 2 more than companion tickets, it is represented by the equation:
x= y +2
On the other hand, there were 59 students and 6 companions. And the total cost of admission for the group was $ 508, that is to say that what all the students and the companions have paid adds up to $ 508. Expressed by an equation:
59x + 6y = 508
Then the system of equations to solve and thus obtain the price of a student ticket and the price of a companion ticket is:
![\left \{ {{x=y+2} \atop {59x+6y=508}} \right.](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7Bx%3Dy%2B2%7D%20%5Catop%20%7B59x%2B6y%3D508%7D%7D%20%5Cright.)
Solving for x, the price of a student ticket:
Rearranging the first equation,
y = x - 2
Replacing in the second equation and solving for x:
59*x + 6*(x -2)=508
59*x + 6*x -12=508
65*x -12=508
65*x= 508 +12
65*x= 520
![x=\frac{520}{65}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B520%7D%7B65%7D)
x=8
The cost of a student ticket is 8$
Answer:
341
Step-by-step explanation:
- Plug the value of b in:
- 3(25) = 3 × 25 = 75
- Plug 75 in:
= 75 ÷ 5 = 15- Plug 15 in: 356 - 15
- 356 - 15 = 341
I hope this helps!
Answer:
hahahahaahaaha
Step-by-step explanation:
Four dollar loss and four dollar profit cause its like -4 + 4 = 0