it takes kenny 25 minutes to inflate the tires of 55 bicycles how long will it take him to inflate the tires of 121 bicycles
2 answers:
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Answer:
3879.24
Step-by-step explanation:
The formula to find the volume of a cone is V =
= 3879.24
Answer:
16%
Step-by-step explanation:
The mean is $15 and the standar deviation is $3.
mean = 15 and SD = 3
We need to find percentage less than 12 per hour
P(x<12)= P(x=12)
to find P(x=12) we find z-score
Now use z-score table . z-score = 0.1587
P(x=12)=0.1587
To get percentage we multiply by 100
0.1587 * 100 = 15.87 = 16%