Answer:
32760 different schedules are possible.
Step-by-step explanation:
The order is important.
For example
Prague on Monday, Berlin on Tuesday, Liverpool on Wednesday and Athens on Thursday is a different schedule than Berlin on Monday, Prague on Tuesday, Liverpool on Wednesday and Athens on Thursday.
So we use the permutations formula to solve this question.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:

How many different schedules are possible?
Choose 4 cities among a set of 15. So

32760 different schedules are possible.
Use the velocity formula and solve for time.v=d/t
t=d/v
Substitute your variables and solve.
65 mi/hr = 65 / 3600 mi/second
25 mi / ( 65/3600) = 1384.6 seconds
Answer:
-8 just add them together
Answer:
Step-by-step explanation:
Substitute the value of the variable into the expression and simplify.
Exact Form: a
=
6,
2
3
Decimal Form:
a
=
6
,
0.
¯
6