Answer:
Step-by-step explanation:
According to the problem, the initial condition is $200. If he owed $100 after 4 weeks, that means he paid $25 per week, so that would be the constant ratio. Therefore, the expression would be:
Where represents the amount owed, and
represents weeks.
So, in the 4 week, that is, he owed:
As you can observe, the relation we found first perfectly to the problem. So, the final expression that model this problem is
Probability of head occurring on flip of coin twice =
Step-by-step explanation:
Step 1:
Given,
A coin is flipped 2 times. We need to find probability that head occurs both times
Step 2 :
Probability that a head occurs when a coin is flipped =
The probability that head occurs when the coin is flipped again =
This is because the 2 events are independent i,e the result of second event is not dependent on happening of the first event
Hence probability that head occurs on both the flip = ×
=
Step 3 :
Answer :
Probability of head occurring on flip of coin twice =