Step-by-step explanation:
The question did not specify what to solve, but from the given the information, we can proceed to solve the actual dimension of the banner, and the dimension will be in feet.
the scale is given as
2ft to 1 in
And the given dimension is
3.5 in and 7.25 in
3.5 inches in actual size is 3.5*2= 7feet
7.25 inches in actual size is 7.25*2= 14.5 feet
The area of the banner can be calculated as
Area=7*14.5
Area=101.5 ft^2
Answer:
516
Step-by-step explanation:
You should check the 561 with 6591
Answer:
0.9999
Step-by-step explanation:
Let X be the random variable that measures the time that a switch will survive.
If X has an exponential distribution with an average life β=44, then the probability that a switch will survive less than n years is given by
So, the probability that a switch fails in the first year is
Now we have 100 of these switches installed in different systems, and let Y be the random variable that measures the the probability that exactly k switches will fail in the first year.
Y can be modeled with a binomial distribution where the probability of “success” (failure of a switch) equals 0.0225 and
where
equals combinations of 100 taken k at a time.
The probability that at most 15 fail during the first year is
4⅚ ≥ x; subtract fifty-eight from both sides, divide by -12 from both sides, and you will have your answer.
NOTE: This is where you reverse your inequality symbol [dividing or multiplying by a negative].
1 cartons of juice = $4.20
3 single cartons = 4.20 * 3 = $12.60
1 pack = $9.45
He saved 12.60 - 9.45 = $3.15
So, he saved $3.15, compared to the total ($12.60)
To calculate the percentage, we will do a proportion:
3.15 (money saved) : 12.60 (total of 3 single cartons) = x (how much percentage) : 100 (total)
3.15 : 12.6 = x : 100
To calculate x, we will moltiplicate the ends (where we have known numbers) than divide all per 12.6
So
x = (3.15 * 100) / 12.60 = 315 / 12.6 = 25
So the percentage saving is 25%
