Answer:


Step-by-step explanation:
Given:
Total number of marbles = 15
Probability of randomly selecting a green marble =
.
Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble =
.
To find:
The number of blue marbles.
Solution:
Let the number of blue marbles be x.


It is given that,

Probability of randomly selecting a green marble, replacing it, and then randomly selecting a blue marble is
. So,



Multiply both sides by 75.



Therefore, the number of blue marbles in the bag is 6.
Answer:
She rode her bike 21 miles
Answer:
IS LINEAR
Step-by-step explanation:
Area=(Theta/2) * r^2 This should be it, obviously Theta is your angle and you should use radiants in theory.