Using the Law of Sines (sina/A=sinb/B=sinc/C for any triangle)
sinR/30=sin96/54
sinR=30sin96/54
R=arcsin(30sin96/54)°
R≈33.5° (to nearest tenth of a degree)
The second equation is perfect. We can add y to both sides to make the equation equal x.
X=5+y; let's plug that in for x in the first equation.
2(5+y)+3y=25
10+2y+3y=25
5y+10=25
Let's subtract 10 from both sides.
5y=15
Now divide both sides by 5.
Y=3
So y is 3. We can plug 3 in for y in the second equation.
X-3=5
X=8
So, X=8 and Y=3.
You need to group the like terms (the terms with the same or no variable) together so it is:
5y-6y-y +6
Then you combine the like term and it becomes
5y-7y +6
-2y+6
which can also be written as 6-2y
Hope this helps :)
Answer:
48-29
Step-by-step explanation:
22-3=19, so put on that makes 19.
