Answer:
I'm going to assume that this means that the volume doubled. If so, then it would become 2*76 = 152 mL
Step-by-step explanation:
Answer:
55.9% of the class are girls
Step-by-step explanation:
19/34 = 0.559
0.559 x 100 = 55.9%
Start by getting all terms with x on one side and all terms without on the other.
6x+7=8x-15
subtract 6x from both sides
7=2x-15
add 15 to both sides
22=2x
divide both sides by 2
11=x
SOLUTION
The mean is 4min
standard deviation is 1min
the z score is

where

then we have

The probability the call lasted less than 3 min will be
Therefore, the probability that (z < -1 ) is
[tex]\begin{gathered} Pr(z<-1)=Pr(0
Hence, the percentage of the calls that lasted less than 3 min is 16%
Answer: 
Step-by-step explanation:
Given
Speed of boat 


