This is a Venn diagram with just two overlapping circles, football and hockey.
There's 10 in the overlap. so 10 just football and 6 just hockey for a total of 26 playing one or the other.
Answer: 26
Answer: x= 8, -8
explanation: i used the app m a t h w a y s
Answer:
jk
Step-by-step explanation:
S=sodas h=hotdogs
228=s+h
s=3h
228=3h+h 228=4h h=57
228=s+57 s=171
Answer: 171 sodas and 57 hotdogs were sold by the vendor
Answer: 0.16
Step-by-step explanation:
Given that the run times provided are normally distributed ;
Mean(x) of distribution = 3 hours 50 minutes
Standard deviation(s) = 30 minutes
The probability that a randomly selected runner has a time less than or equal to 3 hours 20 minutes
3 hours 20 minutes = (3 hrs 50 mins - 30 mins):
This is equivalent to :
[mean(x) - 1 standard deviation]
z 1 standard deviation within the mean = 0.84
z, 1 standard deviation outside the mean equals:
P(1 - z value , 1standard deviation within the mean)
1 - 0.8413 = 0.1587
= 0.16