Answer:
Eric needs 5 batches of paving stones.
Step-by-step explanation:
Given:
Area of Paving stones = 1 square foot
Dimension of patio are given;
Length of patio = 7 feet
width of patio = 8 feet
We will first find the area of Rectangular patio.
Area of Patio = [tex]length\times width=7\times8=56ft^2[/tex]
Now Number of paving stones is equal to area of Patio divide by area of paving stones.
Hence equation can be framed as;
Number of Paving stones = [tex]\frac{\textrm{Area of Patio}}{\textrm{Area of stones}}=\frac{56}{1}=56 stones[/tex]
Now Paving stones are sold in batches which are in dozen.
12 stones are sold = 1 batch
56 stones are sold = number of batches.
By using Unitary method we get;
Number of batches = [tex]\frac{56}{12} =4.67[/tex]
Since batches cannot be in point value hence we can say
Number of batches = 5
Hence Eric need 5 batches of paving stones.
