19.393x738.3803= 14319.409
A) y=1.25x+12.50
B)y= cost
X=number of ride tickets purchase
C) math
Answer:
0.40517 is the probability
Step-by-step explanation:
The first thing to do here is to calculate the corresponding z-score
Mathematically;
z-score = x-mean/SD
from the question,
x = 78, mean = 75 and SD = 12.5
Plugging these values in the z-score equation, we have;
z-score = (78-75)/12.5 = 3/12.5 = 0.24
So the probability we want to calculate is that;
P(z < 0.24)
we can get this by using the standard normal distribution table,
The value according to the table is;
0.40517
Answer:
i believe it is B, havent used that skill in a bit !!
The easiest way to figure this out is by finding out the price for 12 reams at the local store.
4 reams is 4.29 so 12 would be:
3*4.29 = 12.87
Subtract the prices:
12.87 - 9.89 = 2.98
So you save $2.98 by buying from the Wholesale Club.