To find out how many pages she needs to read everyday, you have to divide.
128.5/4.5 = 28.55
So your answer is B) 28.55
Hope this Helps!!
Let
and
be the number of elves and reindeers, respectively.
We know that:
(so far 14 of them have arrived)
(each reindeer has 4 legs and each elf has two)
If we multiply the first equation by 2 we have
, and if we subtract this equation from the second we have
which implies
.
So, there are 5 reindeers and 9 elves (remember that they have to sum up to 14).
The matrix given is
![\left[\begin{array}{ccc}-5&1\\1&4\end{array}\right]](https://tex.z-dn.net/?f=%20%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-5%261%5C%5C1%264%5Cend%7Barray%7D%5Cright%5D%20)
To find determinant
![\left[\begin{array}{ccc}a&b\\c&d\end{array}\right]](https://tex.z-dn.net/?f=%20%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Da%26b%5C%5Cc%26d%5Cend%7Barray%7D%5Cright%5D%20)
we do

So, the determinant of the given matrix is
Answer:
a rate
Step-by-step explanation:
Answer:
$8.75
Step-by-step explanation:
Set up a proportion where x is the cost of a bottle with 250 vitamins:
= 
Cross multiply and solve for x
150x = 1312.5
x = 8.75
So, it will cost $8.75 for a bottle with 250 vitamins