Answer:
20 pavers
Step-by-step explanation:
step 1
Find the area of the rectangular patio
The area of a rectangle is equal to
we have
substitute
step 2
Find the area of one square paver
The area of a square is equal to
we have
---> length side of the paver
substitute
step 3
Divide the area of the rectangular patio by the area of one paver to find out the number of pavers needed
To solve this problem you must apply the proccedure shown below:
1. You have the following expression given in the problem above:
2. The first thing you must do to factor the expression is to group the terms, as following:
3. Now, choose the greatest common factor of each group:
4. Now, you need to factor the expression by factoring out the
The answer is:
The perimeter of the square is given by:
Where,
x: square side.
Substituting values we have:
Rewriting the perimeter of the square we have:
Finally, dividing both values:
Answer:
the perimeter of the square is: