According to Brookhaven National Laboratory, one unit of blood is roughly equivalent to one pint. With just one pint of blood, up to three lives can be saved.
Continue ReadingBrookhaven National Laboratory explains that within one unit of blood there are several components, including red blood cells, white blood cells, plasma, platelets and cryoprecipitate. Each component of blood can be stored for differing amounts of time, with plasma lasting the longest. While red blood cells carry oxygen to the body's organs and tissue, white blood cells are the body's primary defense against infection. Platelets help blood to clot. Each ill person requires differing amounts of the components that make up blood depending on his condition.
Learn more about Fractions & PercentagesIt takes three-thirds to make a whole unit. As a fraction, three-thirds is written as 3/3, which literally means three divided by three, which is then simplified as one. A fraction is a part of a whole, and a whole is equivalent to the figure one.
Full Answer >One way to teach students proportions is to show them how to find a unit ratio and then to use multiplication to derive the desired result. Another method is to use cross-multiplication to find the unknown quantity in a pair of ratios. To illustrate the idea of proportions, it's best to tie the concept to a real-world situation rather than presenting it as an abstract pair of fractions. An example is to find the cost of two sets of items.
Full Answer >Fractions first appeared in the works of Egyptian mathematicians in the form of unit fractions, unlike the ratios used today. They did not enter Europe until the 17th century.
Full Answer >A unit fraction is a fraction where the top number, known as the numerator, is one, and the bottom number, known as the denominator, is any positive number. Additionally, the denominator must be an integer, or round number.
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