Answer:
the number of kilometers hiked in all is 
Step-by-step explanation:
The computation of the number of kilometers hiked in all is shown below:
= Erwin + Jericho
Hence, the number of kilometers hiked in all is
Answer:
The two numbers are 31 and 19
Step-by-step explanation:
Let x and y be the numbers
x+y = 50
x-y = 12
Add the two equations together
x+y = 50
x-y = 12
-----------------
2x +0y = 62
Divide by 2
2x/2 = 62/2
x = 31
Now find y
31+y = 50
Subtract 31
y = 50-31
y = 19
The answer will be -5/2 or -2.5
Answer:
60 arrangements
Step-by-step explanation:
This is a permutation, since I am assuming that order matters. To solve this you start at the number of items you have and multiply that by 1 less than the max until number of items are used up.
5P3 = 5 * 4 * 3 = 60
