Answer=5
a=9 , b=6 , c=3 so 9+6= 15 , 15/3 = 5
Answer:
choosing 1 white marble replacing it, and then choosing another white one.
Step-by-step explanation:
there is 50% chance you pick any of the blue or red marbles, but you have a higher chance to pick another white one if the first one you chose was replaced.
The wingspan is 36 m.
Using a proportion to solve this, we write the scale factor as a ratio first: 19/38, since 19 is the size of the model's length and 38 is the real length. For the second ratio, we have 18 for the size of the model wingspan and x for the real wingspan:
19/38 = 18/x
Cross multiply:
19*x = 38*18
19x = 684
Divide both sides by 19:
19x/19 = 684/19
x = 36 m
I think this is what you're looking if not my apologies!
