I assume you mean cubic yards (some of us are really rigorous about our units)
600 ftxft (1/3yards/ft)(1/3yards/ft) = 600 (1/9)yards2 = 66 2/3 yards2
4 inch (1/12 ft/inch) = 1/3 ft 1/3 ft (1/3)yard/ft = 1/9 yards
66.66666666 yards2 x 1/9 yards = 7.41 yards3
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600 square feet of 4 inch thick concrete is equivalent to 6.67 cubic yards. This can be calculated by first converting the square feet to cubic feet (600 sq ft x 4 inches = 200 cubic feet), and then converting cubic feet to cubic yards (200 cubic feet ÷ 27 = 6.67 cubic yards).
First of all your measurement units are incorrect. It is NOT 'yards' as that is a liner measure.
It should read , 'how many CUBIC yards....'.
To answer the question
3000 sq.ft = 3000/9 sq.yds.
4 inches = 1/9 yds.
Hence
3000 / 9 sq.yds X 1/9 yds =
3000/81 cu.yds. =
37.037 cu.yds.
You'll need 400 square feet (or just under 15 yards) of concrete, but be sure to get some extra to allow for overage.
A yard of concrete is actually a cubic yard. To find the total cubic yards divide the total cubic feet which is 240 by 27 to convert it to cubic yards. You would need 8.89 yards of concrete.
36 x 50 yards equals 1,800 square yards. To convert to square feet, you need to multiply by 9 (since 1 yard equals 3 feet). Therefore, 1,800 square yards is equal to 16,200 square feet.
One square yard equals 9 square feet, so 83 sq. yds. would equal 747 sq. ft.
50.1 square yards is equal to 450.9 square feet. To convert square yards to square feet, you multiply the number of square yards by 9.
To convert feet to yards, you need to divide by 3. So 12 feet is equivalent to 4 yards. To find the square yards, you would multiply the length and width in yards. So if you have a square with sides of 4 yards each, the area would be 16 square yards.
A 12x18 room has 216 square feet. This can be calculated by multiplying the length by the width (12 x 18 = 216).