Pick the last choice.
Please mark brainliest, I had to give go ogle a bj for this answer.
Answer:
23 boxes of toys are being stored.
Step-by-step explanation:
There is a fixed cost of $1200 a month for rent and a variable cost of $5 per box of toys that are stored
This means that for x boxes of toys stored, the total cost is of:
![C(x) = 1200 + 5x](https://tex.z-dn.net/?f=C%28x%29%20%3D%201200%20%2B%205x)
If the total cost for this month was $1315, how many boxes of toys are being stored?
This is
for which
. So
![C(x) = 1200 + 5x](https://tex.z-dn.net/?f=C%28x%29%20%3D%201200%20%2B%205x)
![1315 = 1200 + 5x](https://tex.z-dn.net/?f=1315%20%3D%201200%20%2B%205x)
![5x = 115](https://tex.z-dn.net/?f=5x%20%3D%20115)
![x = \frac{115}{5}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B115%7D%7B5%7D)
![x = 23](https://tex.z-dn.net/?f=x%20%3D%2023)
23 boxes of toys are being stored.
Answer:
0.04845
Step-by-step explanation:
Probability that less than 7 but more than 4 bulbs from the sample are defective :
P(4 < X < 7) = P(x = 5) + P(x = 6)
Using the binomial probability formula :
P(x =x) = nCx * p^x * (1 - p)^(n - x)
From the question :
p = 0.2 ; 1 - p = 0.8 ; n = 11
P(x =5) = 11C5 * 0.2^5 * 0.8^6 = 0.03876
P(x = 6) = 11C6 * 0.2^6 * 0.8^5 = 0.00969
P(4 < X < 7) = P(x = 5) + P(x = 6)
P(4 < X < 7) = 0.03876 + 0.00969
P(4 < X < 7) = 0.04845
Answer:
![2 \frac{59}{72}](https://tex.z-dn.net/?f=2%20%5Cfrac%7B59%7D%7B72%7D)
Step-by-step explanation:
3 3/8 = 3 + 3/8 = 24/8 + 3/8 = 27/8
then:
-5/9 + 3 3/8 = -5/9 + 27/8
= -40/72 + 243/72
= 203/72
203/72 = 144/72 + 59/72 = 2 + 59/72
= 2 59/72
R + 4D < = 64 (thats less then or equal)....and R = regular and D = deluxe