Amanda is reading a book that has 125 pages. she has read 12 pages a day for 4 days in a row. how many more pages does amanda ha
1 answer:
You might be interested in
Answer:
b. –1.33
Step-by-step explanation:
The z-score measures how many standard deviations a score X is above or below the mean.
It is given by the following formula:
In which is the mean and
is the standard deviation.
In this problem, we have that:
. We have to find Z
So the correct answer is:
b. –1.33
First we have to compute how much we spend money each year.
Compute like this:
is the number of gallons consumed each week.
In one year there is 48 weeks.
Then
is the number of gallons a year.
Now compute the price:
We do the same process with a car consuming 40 miles per gallon.
tex] \frac{450}{40}=11.25 [/tex] gallon consumed per week.
gallons consumed per year.
is the amount paid each year in gallons.
So we are saving the following amount:
Compute like this:
In one year there is 48 weeks.
Then
Now compute the price:
We do the same process with a car consuming 40 miles per gallon.
tex] \frac{450}{40}=11.25 [/tex] gallon consumed per week.
So we are saving the following amount: