There are 20 books in each box.
If each box has 20 books, then the number of books is 20 times the number of boxes. (20 books: 1 box, 40 books: 2 boxes...)
So, using mathematical terms, the number of books is equal to the number of boxes x 20.
Here, it says James packs x boxes of books. This means that we call the number of boxes, x. X could be 1,2,3, or any other number.
So, since there are 20 times as many books as boxes, the number of books is 20 times x.
In math terms, this is written like 20x.
So the answer is 20x.
Answer:
A and D
Step-by-step explanation:
Negative times positive is always negative, thus making them less than 0. Negative times negative is positive, so B and C both have a positive product. Hope this helps
5 16/25 is the greatest and -18/25 is the least if I'm correct
Answer:
Step-by-step explanation:
Required
Equation of line
passes through 
In an equation of the form 
; the slope is 
So, by comparison;
The slope of 
is: 
From the question, we understand that the required equation is perpendicular to
This means that its slope is:
So, we have:
The line equation is:
Where:
So, we have:
