15 divided by 3 is 5, so he can buy 5 packs.
Since each pack contains 12 cards, 12x5=60.
Step-by-step explanation:
If a boy student was picked, the probability that they passed is 0.25 * 0.4 = 0.1.
If a girl student was picked, the probability that they passed is 0.75 * 0.25 = 0.1875.
Total probability = (0.1 + 0.1875) * 100% = 28.75%.
Answer:
no solution
Step-by-step explanation:
6x + 4x - 1 = 2(5x + 4) ← distribute parenthesis
10x - 1 = 10x + 8 ( add 1 to both sides )
10x = 10x + 9 ( subtract 10x from both sides )
0 = 9 ← not possible
this indicates the equation has no solution
Answer:
Step-by-step explanation:
The equation of a horizontal line is y = b where b is the y-intercept. Since the slope of a horizontal line is 0, the general formula for the standard form equation, y = mx + b becomes y = 0x +b y = b. Also ,since the line is horizontal, every point on that line has the exact same y value. This y-value is therefore also the y-intercept.
I think is the first one because is either heads or tail, so is a 50-50 chance, so they are equally probability to be either one...
