Answer:
P = 4x + 22
Step-by-step explanation:
Formula
Perimeter = 2*L + 2*W
Givens
L = x + 6
W = x + 5
Solution
Perimeter = 2*(x + 6) + 2*(x + 5) Remove the brackets on both terms
Perimeter = 2x + 12 + 2x + 10 Collect like terms
Perimeter = 4x + 22 Answer
X = 1st number
x + 1 = 2nd number
x + 2 = 3rd number
x + (x + 1) + (x + 2) = 18...combine like terms
3x + 3 = 18
3x = 18 - 3
3x = 15
x = 5
x + 1 = 5 + 1 = 6
x + 2 = 5 + 2 = 7
7 + 6 + 5 = 18
13 + 5 = 18
18 = 18 (correct)
largest number is 7
There is to say, for each first roll, we start out with six possibilities; for each of these, there are six possibilities for the second roll; finally, for each second roll, there are six possibilities for the third. So, 6 cubed. So, 216 is our denominator, i.e., the number of all possible outcomes.
Answer: 216
