ANSWER
1. 3391680
2. 3876
EXPLANATION
1. We want to find the value of:
This is called "12 permutation 7"
Permutation function is defined as follows:
Therefore, we have that:
2. We want to find:
This is called "19 combination 15"
Combination function is defined as:
Therefore, we have that:
<h3>
Answer: 4.475 gallons</h3>
Work Shown:
17 & 1/8 = 17 + 1/8 = 17 + 0.125 = 17.125
17.125 - 12.65 = 4.475
Isolate the m. Note the equal sign. What you do to one side, you do to the other. Add m to both sides
-m (+m) + 18 = 2m (+m)
3m = 18
Next, to isolate the m, divide 3 from both sides
3m/3 = 18/3
m = 18/3
m = 6
6 is your answer
hope this helps