need to write equation. use a variable for the unknown

Question

kyle has a notebook for each of his 5 classes. He puts 6 stickers on each notebook. There are 10 stickers on each sheet. How many sheets of stickers will kyle use?

Answer 1

Let's see if this helps:

 

 

5 • 6 = 10 • x    -   Kyle has 5 notebooks (1 for each class) and he puts 6 stickers

                            on each one

                             x (number of sheets) with (•) 10 stickers on each sheet

                            These things have to = because the total stickers have to equal

                             the peeled off stickers on the notebooks

 

30 = 10 • x           Now, do the multiplication on the left side of the equation (5

                            times 6 equals 30)  Rewrite the problem

 

 

30 / 10 = 10 • x / 10    Now to get the x all by itself, you have to do the opposite

                                   - the opposite of multiplication is division

                                   Divide both sides by 10 -  30 / 10 = 3  and the 10 multiplied

                                   and divided on the right cancel each  

                                   other out and you are just left with the x on the right side.

 

3  =  x

 

Now, plug in the number and see if it works: 

•  5 notebooks times 6 stickers = 30 stickers
• 3 sheets times 10 stickers on each sheet = 30 stickers

I hope this helps :)