1/21 * 1/20 = 1/420 that is the probability that you are chosen first.
Probability of your friend chosen first = 1/420 also.
So the required probability = 1/420 + 1/420 = 1/210 Answer
Its D
R - 18 = 50
r = 50 + 18 = 68
Hence Rick is 68 yrs old
X/8 + 12 = 15
x/8 = 3 . ( start by subtracting 12 on both sides to get x on one side)
x = 24 ( now multiply by 8 on both sides to get x by itself and there is your answer )
hope this helps , give brainliest ! thanks
Answer:
115.3333
Step-by-step explanation:
346/3
Hope this helps. :)
Answer:
9
Step-by-step explanation:
3*6 would be 18 for a rectangle.
the triangle is basically a rectangle cut in half diagonally, so it's (3*6)/2
