There are 5 pages in TY's album
Step-by-step explanation:
Given
Total number of cards = 90
Given that TY is putting 9 cards on each side of the page which means that total cards on both sides of a page will be:

Now in order to find the total number of pages in the card album, we have to divide the total number of cards by cards on one page.

Hence,
There are 5 pages in TY's album
Keywords: Unit, division
Learn more about division at:
#LearnwithBrainly
Answer:
(1,3), or option 1
Step-by-step explanation:
The formula for a 90 degree clockwise rotation is (x,y)------>(y,-x). In this case it started out as (-3, 1). Using the formula you get (1,-3(-1)), which is equal to (1,3). Hence option 1 is correct
Alright, so we can start by dividing -2 from both sides, getting |5y-1|=20. Then, since 5y-1 is in an absolute value, 5y-1 is either 20 or -20.
In 5y-1=20, we can add one to both sides, getting 5y=21 and y=21/5. In
5y-1=-20, we can add one again, getting 5y=-19 and y=-19/5.
If you have any more equations, make sure to plug both numbers in to check, but otherwise y has two answers , which are -19/5 and 21/5.
Answer:
The atom of carbon weighs more
Step-by-step explanation:
we have
<em>Atom of carbon weighs</em>

<em>Atom of hydrogen weighs</em>

Compare

therefore
The atom of carbon weighs more
ANSWER
Emma is 44" tall
EXPLANATION
We have that David cast a shadow 42 inches long and he is 66 inches tall.
At that same place and time, Emma cast a shadow of 28 inches.
Since they are at the same spot and time, we can conclude that the ratio of their height to shadow must be the same.
Let Emma's height be x.
The ratio of David's shadow to height is:
42 : 66 or 42 / 66
For Emma, it is:
28 : x or 28 / x
That means that:

So, Emma is 44" tall.