Ella bought 8 keychains. She spent 4 dollars on each KeyChain. Hope this helps
Answer:
Step-by-step explanation:
we know that
The equation of a exponential growth function is given by
where
P(t) is the population in Madison
t is the number of years
a is the initial value
b is the factor of growth
we have
substitute
Let number of books by astrid's = x
Out of x , 84% are fiction.
So, Number of non fictional books = x -
=
→Ratio of number of books to fictional books
⇒[Dividing numerator and denominator by 4.]
→Out of 25 books by astrid 21 are fictional.
→ Number of fictional books by astrid =
First you multiply the two numbers and get
1/6x3/5= 3/30
Then you reduce 3/30 and you get 1/10
So the final answer is 1/10!
Answer:
Nowe we can find the means for x and y like this:
And we can find the intercept using this:
So the line would be given by:
Step-by-step explanation:
Σx = 77, Σy = 587, Σx2 = 1593, Σy2 = 70,533, and Σxy = 10040.
Where:
With these we can find the sums:
And the slope would be:
Nowe we can find the means for x and y like this:
And we can find the intercept using this:
So the line would be given by: