Question 1126929
.
<pre>
Let W be the rectangle width.


Then its length is 4 times W, or 4W, according to the condition.


The perimeter is the sum of lengths of all 4 sides:


    Perimeter = L  + W + L  + W,   or

    Perimeter = 4W + W + 4W + W = 10W.


It is equal to  30, according to the condition.


So, you have an equation


    10W = 30.


To solve the equation, divide both sides by 10. You will get


    W = 30/10 = 3 units.


So, the width is 3 units.

Hence, the length is 4 times 3 units, or 4*3 = 12 units.


<U>Answer</U>.  The width is 3 units;  the length is 12 units.
</pre>

Solved. &nbsp;&nbsp;// &nbsp;&nbsp;My congratulations to you and to your son ! 


<pre>
    As the conclusion, ask your son to re-tell this solution to you.

    Be sure to say him "Good job !" when he will complete it !

    Ask him if he wants to get more solutions and explanations from me.

    If he (and you) want it, I will be happy to be in touch !
</pre>

------------


1. &nbsp;&nbsp;Please let me know whether you understand my solution and whether your son understand it.  &nbsp;&nbsp;Thank you.



2. &nbsp;&nbsp;Notice that there is no question in your post, &nbsp;which is &nbsp;VERY BAD.


-----------------


Closely related to it are these lessons, that you can read too to upgrade your knowledge

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Points-lines-and-rays/Solved-problems-on-the-perimeter-of-a-triangle.lesson>Solved problems on the perimeter and side lengths of a triangle</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Points-lines-and-rays/Solved-problems-on-the-perimeter-and-side-lengths-of-a-right-angled-triangle.lesson>Solved problems on the perimeter and side lengths of a right-angled triangle</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Points-lines-and-rays/Solved-problems-on-the-perimeter-and-side-lengths-of-a-parallelogram.lesson>Solved problems on the perimeter and the side lengths of a parallelogram</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Points-lines-and-rays/Solved-problems-on-the-perimeter-and-side-lengths-of-a-rectangle.lesson>Solved problems on the perimeter and side lengths of a rectangle</A>

(as well as your son's knowledge).



Good luck and happy learning to you and to your son !