If two events are dependent on each other you have to multiply the probability of the first event times the probability of the second event.
first count all the marbles here there are 21
you are asked about picking two green marbles there are 7 out of the 21 total.
The first event would be 7/21
The second event would be 6/20 (since you didn't replace and you took out a green one)
now multiply your two fractions together:
and you get 1/10.
3 hours
On the way there, 1.5x12 = 18
On the way back, 1.5x10 = 15
Answer:
yes it is 8
Step-by-step explanation:
Answer:
Step-by-step explanation:
we know that
In a rectangle, the two diagonals are congruent and each diagonal bisects the other
so
----> equation A
-----> equation B
step 1
Find the value of x
solve equation A
substitute the given values
solve for x
step 2
Find the value of KE
substitute the value of x
Remember that
-----> by each diagonal bisects the other
therefore