Answer:
<h3>A. x=5*8</h3>
Step-by-step explanation:
Isolate the term of x from one side of the equation.

<u>First, you have to multiply by 8 from both sides.</u>

<u />
<u>Solve.</u>
<u />
<u>Multiply the numbers from left to right.</u>
5*8=40

<u>Therefore, the correct answer is "A. x=5*8".</u>
I hope this helps. Let me know if you have any questions.
Answer:
12
step by step equation:
Lindsay owns 12 books.
Step-by-step explanation:
We can solve this question using a system of equations.
I am going to say that:
x is the number of books that Lindsay owns.
y is the nuber of books that Destiny owns.
z is the number of books that Henry owns.
Lindsay owns one-third the number of books that Destiny owns.
This means that:
, or
Henry owns a fourth as many books as Destiny.
This means that , or . Also, in function of x, we may have
Together they own 57 books.
This means that
We want to find x. So
Lindsay owns 12 books.
Area under ALL probability distribution curves is 1.0, because all possible outcomes are taken into account.