Answer:
4/10 maybe cuz 12 divided by 30 is 0.4 and 0.4 would be 4/10
1/2 probability of 1 flip
1/2 x 1/2 x 1/2 x 1/2 = 1/16 probability
If you would like to solve the equation 3 * (3 * x - 1) + 2 * (3 - x) = 0, you can calculate this using the following steps:
3 * (3 * x - 1) + 2 * (3 - x) = 0
3 * 3 * x - 3 * 1 + 2 * 3 - 2 * x = 0
9 * x - 3 + 6 - 2 * x = 0
7 * x + 3 = 0
7 * x = - 3 /7
x = - 3/7
The correct result would be - 3/7.
