Mr Snyder is tiling a floor. The floor is 16 tiles long and 9 tiles wide. The center section is 12x long and 5 tiles wide. How many tiles are in the border section?
well, on the end, you have 4 wide (16-12)*5, and the width 9-5 by 12
tiles in border=20+48
draw the figure, and check my thinking.
To find the number of tiles in the border section, we first need to find the total number of tiles in the center section, and then subtract it from the total number of tiles.
The floor is 16 tiles long and 9 tiles wide, which means it has a total area of (16 x 9) = 144 tiles.
The center section is 12 tiles long and 5 tiles wide, which gives it an area of (12 x 5) = 60 tiles.
To find the number of tiles in the border section, we subtract the area of the center section from the total area of the floor:
144 tiles - 60 tiles = 84 tiles.
So, there are 84 tiles in the border section of the floor.