Answer: $80.44
Step-by-step explanation:
First of all, find 20% of 78.86, which is approximately 15.77.
Then, add it to the cost of the meal.
Finally, discount 15% of 94.63, which is approximately $14.19, and then subtract it from $94.63, and there's your answer.
The normal distribution curve for the problem is shown below
We need to standardise the value X=405.5 by using the formula
We now need to find the probability of z=0.32 by reading the z-table
Note that z-table would give the reading to the left of z-score, so if your aim is to work out the area to the right of a z-score, then you'd need to do:
from the z-table, the reading
gives 0.6255
hence,
The probability that the mean weight for a sample of 40 trout exceeds 405.5 gram is 0.3475 = 34.75%
Answer:
d
Step-by-step explanation:
40% = 40/100
40/100 X = 8
X = 800/40 = 20
X% of 40 = 20/100*40 = 8
It would take 2 hours. To complete the whole lawn you would need:
To make a whole, so to get that we multiply:
So we use the same number required for the whole lawn, and multiply it times the hours
0.08/3.84= 0.0208333 , you can round that up to 0.02.