X=arcsin(-1)/2
I hope this helps.
Have a "AWESOME" day. :)
Answer:
The solution is in the attached file below
Round 396.6 to 396, because 396/9=44, making a whole number. Hope this helps!!
The general equation is that for every red tile, there must be 12 blue ones.
Algebraically this is expressed as b = 12r where r is red and b is blue. Your teacher might like you to express it as y = 12x where y is blue and x is red. The meaning is the same.
For beginners it might be easier to say b = 12r. So if you have 15 reds then r = 15
b = 12 * r
b = 12 * 15
b = 180 blue tiles.