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tami5
01.07.2020 •
Mathematics
Harry has a floor 8 metres long by 6 metres wide.He tiled the entire floor with square tiles of side 25 cm . How many tiles would be required to tile the floor
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Ответ:
768 tiles would be required to tile the floor.
Step-by-step explanation:
Let's first calculate the number of square meters that the rectangular floor represents, by using the formula for the area of a rectangle (length x width):
Floor area = 8 m x 6 m = 48![m^2](/tpl/images/0698/7042/0b3f2.png)
Next, let's convert the side of the square tiles into meters in order to keep the same units in both (floor area an tile area):
25 cm = 0.25 m
Then the are of a square tile can be obtained by the formula 0.25 m x 0.25 m = 0.0625![m^2](/tpl/images/0698/7042/0b3f2.png)
Now to find the number of tiles needed, we perform the division of the total floor area to be covered divided by the area covered by a single tile:
Number of tiles needed: 48
/ 0.0625
= 768 tiles
Ответ:
y = 2/3x - 2
Step-by-step explanation:
Subtract 2x from both sides : -3y = -2x + 6 then divide both sides by -3