Answer:
Attached in file. I did this on paper, apologies if the PDF is blurry.
Answer:
x = p + yp / y - 1
Step-by-step explanation:
y = x+p / x-p
y(x-p) = x + p
y(x-p) -x = p
yx - yp - x = p
yx - x = p + yp
x(y - 1) = p + yp
x = p + yp / y - 1
This is a question of combination. In other words, the question requires determination of number of ways in which 12 appetizers can be chosen form a total of 17 appetizers.
Therefore,
Possible number of 12 groups = 17C12 = 17!/[12!*(17-12)!] = 6188
Answer:
23 floors
Step-by-step explanation:
Subtract 7 from 30:
30 - 7
= 23
So, she traveled 23 floors.
I add awl them up or subtract which one i have to do that the one wiil do
