Answer:
5
Step-by-step explanation:
x × 4 = x + 15
4x = x + 15
-x -x
3x= 15
-- --
3 3
x = 5
// have a great day //
Answer:
Step-by-step explanation:
all you have to is 8x12 multiplied by 2 since there is 2 rooms which is 192
I BELIEVE that there are 22 quarters, 13 dimes, and 7 nickels I’m super super sorry if wrong
Answer:
huh
Step-by-step explanation:
Answer:
The probability that the time between the next two calls is between 3 minutes and 7 minutes is 0.2442.
Step-by-step explanation:
Let <em>X</em> = time between calls made to Amazon's customer service.
The average time between calls is, <em>β</em> = 10 minutes.
The random variable <em>X</em> follows an Exponential distribution with parameter 
The probability distribution function of <em>X</em> is:

Compute the probability that the time between the next two calls is between 3 minutes and 7 minutes as follows:

Thus, the probability that the time between the next two calls is between 3 minutes and 7 minutes is 0.2442.