math
posted by kaykay on .
Problem: how many bricks 3.75 in. Wide × 8 in. Long are required to cover a patio 13 ft. 6 in. Wide by 18 ft 9 in. LonStep 1. First, find the total width & length of the patio in inches.
Step 1a. Convert the portion of width and length that is expressed in feet to inches. Width: 13 ft = 13 × ___ = ___in
Length: 18 ft = 18 × ____ = _____ in

Ab = (3.75/12)*(8/12) = 0.20833333 ft^2.
= Area of each brick.
Ap = 18.75 * 13.5 = 253.125 Ft^2. =
Area of patio.
Bricks = Ap/Ab = 253.125/0.20833=1215.
ap