Answer:
6⅔ minutes
Or, 6 minutes 40 seconds
Step-by-step explanation:
X/10 + X/20 = X/T
(2X+X)/20 = X/T
3X/20 = X/T
3/20 = 1/T
T = 20/3
T = 6⅔ mins
Answer:
There is 3 out of 4 chance you will get one head.
You are not guaranteed to get a head
Step-by-step explanation:
Lets determine the sample space
HH HT TH TT
These are the 4 things that can happen when we flip to coins
We want at least one head
3 of the 4 choices have at least 1 head
P (at least one head) = 3/4
Answer:
y = -9
Step-by-step explanation:
Answer:
i belive the answer is c because they always try and trick you making you choose the wrong one and all the evidence cites that it could be c!!
Step-by-step explanation:
