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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is: 50 / 100 × 40 / 100 = 0.50 × 0.40 = 0.20 = 20 / 100 = 20%. It is not correct to divide by 100 and use the percent sign at the same time; it would literally imply division by 10,000.

  3. 30 (number) - Wikipedia

    en.wikipedia.org/wiki/30_(number)

    In mathematics. 30 is a square pyramidal number. 30 is an even, composite, pronic number. With 2, 3, and 5 as its prime factors, it is a regular number and the first sphenic number, the smallest of the form , where r is a prime greater than 3. It has an aliquot sum of 42, which is the second sphenic number. It is also:

  4. Duty cycle - Wikipedia

    en.wikipedia.org/wiki/Duty_cycle

    For example, a signal (10101010) has 50% duty cycle, because the pulse remains high for 1/2 of the period or low for 1/2 of the period. Similarly, for pulse (10001000) the duty cycle will be 25% because the pulse remains high only for 1/4 of the period and remains low for 3/4 of the period.

  5. Daily mortgage rates for May 29, 2024: Rates on 30-year ... - AOL

    www.aol.com/finance/daily-mortgage-rates-for-may...

    Freddie Mac reports an average 6.94% for a 30-year fixed-rate mortgage, down 8 basis points from last week's average 7.02%, according to its weekly Prime Mortgage Market Survey of nationwide ...

  6. Only 30% of Americans have a plan to minimize the taxes ... - AOL

    www.aol.com/finance/only-30-americans-plan...

    These 5 magic money moves will boost you up America's net worth ladder in 2024 — and you can complete each step within minutes. Here's how. Thanks to Jeff Bezos, you can now use $100 to cash in ...

  7. DEET - Wikipedia

    en.wikipedia.org/wiki/DEET

    The Centers for Disease Control and Prevention recommends 30–50% DEET to prevent the spread of pathogens carried by insects. A 2008 study found that higher concentrations of DEET have an improved ability to repel insects through fabric. Contraindications. DEET should not be used on children younger than 2 months of age.

  8. Ammonia solution - Wikipedia

    en.wikipedia.org/wiki/Ammonia_solution

    Ammonia solution, also known as ammonia water, ammonium hydroxide, ammoniacal liquor, ammonia liquor, aqua ammonia, aqueous ammonia, or (inaccurately) ammonia, is a solution of ammonia in water. It can be denoted by the symbols NH 3 (aq). Although the name ammonium hydroxide suggests a salt with the composition [NH+.

  9. 30 by 30 - Wikipedia

    en.wikipedia.org/wiki/30_by_30

    30 by 30 (or 30x30) is a worldwide initiative for governments to designate 30% of Earth's land and ocean area as protected areas by 2030.

  10. List of causes of death by rate - Wikipedia

    en.wikipedia.org/wiki/List_of_causes_of_death_by...

    Leading cause of death (2016) (world) The following is a list of the causes of human deaths worldwide for different years arranged by their associated mortality rates. In 2002, there were about 57 million deaths.

  11. List of countries by total wealth - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_total...

    In the following table are ranked the 30 countries by the largest national net wealth from 2000 to 2022 according to UBS and Credit Suisse S.A. (August 2023).