You would have worked 6 hours as lifeguard and 8 hours as cashier.
8(14 - y) + 6y = 96
112 - 8y + 6y = 96
112 - 2y = 96
-2y = -16
y = -16/-2 = 8
You worked 8 hours as a cashier. since the total hours worked is 14 we know you worked as a lifeguard for 6 hours.
Standard deviation= σ= 0.1
Confidence interval= 95%= 0.95
Significance level=α= 1-0.95= 0.05
α/2 = 0.025
At α/2 z( α/2 ) =1.960 [from statistic table]
Now,
the sample size at error of 0.02 is
0.02=z( α/2 )σ/√n
0.02=(1.960)*(0.1)/√n
5/49 = 1/√n
√n=49/5
n=96.04
n should be 96 or greater
Answer:
Option A is correct.
Step-by-step explanation:
From the dimensions first find the volume of the container and then find the estimate ratio of each cookie on diving the volume by number of cookies.
Answer:
C. X=6
Step-by-step explanation:
Length of one side =52/4= 13
3X-5= 13
3x = 13+5
X= 18/3
X= 6
I think it is e I hope I am right
