Let b the book :
it is proportion
6/11=b/13543
b=(6/11)(13543)
b=7307 books
73707-3500 = 3887 book is remaining.
Well one way that you can use multiplication to estimate and solve division problems is that when you are dividing a smaller number or any number into another number for example... 12/324 you can multiply what times 12 equals 324. That or use a calculator if it is aloud I may add. Sometimes it is easier to do it that way then doing out all the horrible long steps making it harder to do.
Answer:
33.
Step-by-step explanation:
43x÷4=33 multiply both sides by 4
More = Addition
"Twice a Number" = Multiplication (specifically by two)

Since the order of operations tell us to multiply before we add, we can simplify

.
Answer:
2(L+W)H
Step-by-step explanation:
- <em>The lateral surface area of a prism is the total of the area of the faces.</em>
- <em>The lateral area of the prism is equal to the perimeter of the base times the altitude.</em>
Surface area= 2(L+W)H