A person can make 100 using the digit 9 four times in an equation. The equation for this math problem is: 99 + (9 / 9) = 100. This solution works because 9 divided by 9 equals 1, and 99 plus 1 equals 100.
Know MoreSolving this math problem requires one to notice that the number 99, which contains the digit 9 repeated twice, is very close to 100. In fact, 100 - 99 = 1. The other two 9 digits must therefore equal one, and this requires a fraction. The fraction 9 over 9 equals 1. Combining these two facts in a single equation solves this math problem, with the answer being 99 + (9 / 9) = 100.
Learn MoreThe most common prefix for the number nine is "nona-", such as in the word "nonagon," which describes a polygon with nine sides, and "nonagenarian," a person in his 90s. A less commonly used prefix is "nove-," as in "novennial," which is an event that occurs every nine years.
Full Answer >Aryabhata was an ancient Indian philosopher and astronomer who made a wide variety of contributions, including approximating the value of Pi, asserting that the Earth makes a daily rotation on an axis and describing rules for eclipse calculations. He wrote numerous books in his lifetime, many of which are believed to be lost. He lived from about 476 to 550 A.D.
Full Answer >Using the digits 0 to 9, with no number repeating itself, 151,200 possible combinations of six digits. However, if a true number is required, meaning 0 cannot be the first digit, only 136,080 combinations are available.
Full Answer >The average life expectancy for a person on dialysis is five to 10 years, according to The National Kidney Foundation. Many people live on dialysis for as long as 20 or 30 years.
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