Answer:
19.40
Step-by-step explanation:
What are you trying to ask? Are you saying a family eats 1 bread 2 bread 3 bread each meal which combination will allow for 2 meals?
If so it’s 1 and 2 if your saying they eating 1 2 3 bread each meal 3 isn’t enough
Let x be the required waranty period, then
P(X < x) = P(z < (x - 12)/(8/12)) = 1 - 0.067 = 0.933
P(z < 12(x - 12)/8) = P(z < 1.498)
12(x - 12)/8 = 1.498
x - 12 = 8(1.498) / 12 = 0.9987
x = 12 - 0.9987 = 11
Therefore, they should waranty for 11 years so that no more than 6.7% fail within that time.
cost of production = %13
Let the price be p, then
revenue less price of failed iron = p - 0.067(13) = p - 0.871
Profit = p - 0.871 - 13 = 5
p - 13.871 = 5
p = 5 + 13.871 = 18.871
Therefore, the should charge $18.87 per waffle iron.
there are nine ducks and 3 swans
sqrt of 9 equals 3
3 + 9 = 12
