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Q: How many bricks would you need if the area of the patio is 400 square feet and each brick is 5 and a half inches by 8 inches?

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About 14 bricks should do it.

38

The first step is to convert the total patio area to inches so we are working with the same units. 100sq ft = 14,400 sq inches. Now we need to calculate the number of square inches each brick takes up. Answer: 36 sq in. Now we just divide the total square inches of the patio by the square inches taken up by each brick: 14,400/36 = 400 bricks. It will take 400 bricks to make a 100 square foot patio.

488 bricks.

450 bricks

115 should do it!

A lot !!

81 bricks.12 feet times 12 inches per foot = 144 inches.144 inches divided by 16 inches per brick = 9 bricks in length/width.9 bricks (length) times 9 bricks (width) = 81 bricks.

1,350 of them.

Gee, a square foot is 12x12, difficult problem.

The question, as stated cannot be answered. You need to know two dimensions of the bricks to find the area of each brick, convert that area into square feet (if necessary) and then divide 256 by the area of each brick. Bricks are not usually square so it would not be appropriate for me to assume that the bricks are 16" by 16".

The surface area of a brick is therefore 16 * 16 = 256 square inches which is 256 / (12 * 12) = 1 7/9 square feet. So you will need exactly 196 / 1 7/9 = 110.25. Best make it at least 111 then.

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