2. How many numbers between 100 and 10000 have exactly 3 same figures? There are 900 numbers between 100 and 10000 that have exactly 3 same figures. This is because there are 9 possible digits (0-9) and each of them can be repeated 3 times to form a 3-digit number.
Multiply length times width. 10.5 ft × 3 ft = 31.5 square feet; Convert your depth of 3" into decimal feet. 3 inches divided by 12 inches per foot is 0.25. Multiply your square footage by your depth. 31.5 sq ft × 0.25 ft = 7.875 cubic feet. You need mulch for 5 beds, so 5 × 7.875 = 39.375 cubic feet.
For example, if the task is to find how many combinations are possible with 4 numbers, compute (2 · 4 - 1)! = 7! = 7 · 6 · 5 · 4 · 3 · 2 · 1 = 5040 / (24 · 6) = 5040 / 144 = 35. 3 choose 2. What if one is asked to determine how many unique combinations of two numbers are possible if one is choosing from a total of three?
If you are planning on mixing your mortar yourself, you will need a yield of 1:3 cement to sand mixture. On average, it takes about three bags of cement for every 100 blocks. Divide the number of blocks being installed by 33.3 to calculate how many bags are needed.
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how many 3 in 100