How to do long division

2 answers:

5 0

For example 20 divide by 5 you would see how many times 5 can go into 20 so then you realize 5 goes into 20, 4 times. So to do division you must figure out the reverse of it so you must know how to multiply. You start by multiplying 5 times 1 and until you reach your answer. If you have a times table sheet. You must follow the number being divided into the bigger number until you see the big number.

Hope this helps.

Setler [38]3 years ago

4 0

Step.1:"How many time do I have to divide"
Step 2:"Multiply"
Step 3:"subtract"
Step 4:Drop it down
Step 5:"If nessisary" Repeat

You might be interested in

Find a formula for the described function. A rectangle has perimeter 16 m. Express the area A of the rectangle as a function of

Alex17521 [72]

Part A:

Let the length of one of the sides of the rectangle be L, then the length of the other side is obtained as follow.

Let the length of the other side be x, then

$2(L+x)=16 \\ \\ \Rightarrow L+x=8 \\ \\ \Rightarrow x=8-L$

Thus, if the length of one of the side is x, the length of the other side is 8 - L.

Hence, the area of the rectangle in terms of L is given by

$L(8 - L) = 8L-L^2$

Part B:

To find the domain of A

Recall that the domain of a function is the set of values which can be assumed by the independent variable. In this case, the domain is the set of values that L can take.

Notice that the length of a side of a rectangle cannot be negative or 0, thus L cannot be 8 as 8 - 8 = 0 or any number greater than 8.

Hence the domain of the area are the set of values between 0 and 8 not inclusive.

Therefore,

$dom(Area)=0\ \textless \ L\ \textless \ 8 \ or \ (0, 8)$