A score is twenty, and fourscore is therefore eighty.
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A hundred fourscore is equal to 400 (since a score is 20, and 100 times 20 equals 2000). Therefore, when you add five thousand to it, you get 2000 + 5000, which equals 7000. So, a hundred fourscore and five thousand is 7000.
A score means 20, so fourscore and seven years is 87 years (20*4 + 7,) and threescore and six days is 67 days (20*3 + 7)
Time period = 1 / frequency. Frequency = 1 / time period.
Time period = 1 / frequency. Frequency = 1 / time period.Frequency and period are mutual reciprocals.
Average speed over a period of time = (distance covered in a period of time) divided by (time it took to cover the distance).