look at the triangle ABC ABD is an isosceles triangle where AB=AD work out the sizes of angles x, y and z

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500

or

first one because it can't have a fraction in it

step-by-step explanation:

9987

step-by-step explanation: