1/3 chance of it being a boy the first time and 2/3 chance of it being a girl second
Answer:
10+2+1=13
Step-by-step explanation:
We already know that he is making ten cups originally. So if we add p(2) to that, we get 12 and then we add a(1) to it, we get 13
Answer:
2 root 2
Step-by-step explanation:
the cube diagonal of the pyramid inside it makes a triangle.which is a right triangle.and a cub always makes a 45 45 90 triangle so the side with 2 yd is a and the other side is also a so that is also 2 yards and the slant or diagonal is a root 2 so the diagonal is 2 root 2.
2x1.5 then divide by 3.14
Answer:
1/4
Step-by-step explanation:
So, we can create this representation of a in relation with b, since we know a is smaller than b by 1/5 of b, we can say that a is equal to 4/5 of b, right?
![a = \frac{4}{5} b](https://tex.z-dn.net/?f=a%20%3D%20%5Cfrac%7B4%7D%7B5%7D%20b)
To invert the ratio, we need to isolate B, so we multiply both sides of the equation by 5/4
![a * \frac{5}{4} = * \frac{5}{4} * \frac{4}{5} b = b\\ \\ b = \frac{5}{4} a](https://tex.z-dn.net/?f=a%20%2A%20%5Cfrac%7B5%7D%7B4%7D%20%3D%20%2A%20%5Cfrac%7B5%7D%7B4%7D%20%2A%20%5Cfrac%7B4%7D%7B5%7D%20b%20%3D%20b%5C%5C%20%5C%5C%20b%20%3D%20%5Cfrac%7B5%7D%7B4%7D%20a)
So, we have b being 1/4 bigger than a.