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Science & Technology

Calculating Two Thirds of a Number

Calculating Two Thirds of a Number

Fractions can take two forms, and whichever form you use, you can use your calculator or your notepad to find two-thirds of a number. For example, you can write two-thirds in fractional form – 2/3 – or as a decimal…

Utilizing the Percentage Key on a Calculator

Utilizing the Percentage Key on a Calculator

Although people often ignore it because they do not fully understand it, the percent key on a calculator can be an invaluable tool. When you wish to figure out what a specific percentage is of another number or a number…

Calculating Cross-Sectional Area

Calculating Cross-Sectional Area

You may encounter situations in which you have a three-dimensional solid shape and need to figure out the area of an imaginary plane inserted through the shape and having borders defined by the boundaries of the solid. For example, if…

Exploring Animals of the Hadal Zone

Exploring Animals of the Hadal Zone

The creatures that roam the deepest parts of the ocean, known as the _hadal zone or hadopelagic zone_, are largely a mystery to humans. It’s only recently that we’ve developed technology that allows us to plunge miles beneath the surface…

Writing 33% as a Fraction

Writing 33% as a Fraction

Writing 33 percent as a fraction requires a basic knowledge of fraction and percentage conversion. A fraction represents an amount relative to a whole. With percentages, the same concept applies, with 100 designated as the whole. Checking your work requires…

Understanding the Distinctions Between Male and Female Ladybugs

Understanding the Distinctions Between Male and Female Ladybugs

Ladybugs, also known as ladybird beetles or lady beetles, belong to the Coccinellidae family of beetles. They are not, as their common name suggests, all female beetles. These cheerfully vibrant, orange- to red-hued, spotted little beetles are known for their…

Understanding the Meaning of ‘E’ on a Calculator

Understanding the Meaning of 'E' on a Calculator

Uppercase “E” stands for “exponent” in calculator displays. Calculator manufacturers use it to display numbers in scientific notation because the longhand version is difficult to display and would be even more difficult to read. To complicate matters, some calculator manufacturers…

Converting 7/8 Inches to Millimeters

Converting 7/8 Inches to Millimeters

While the United States still relies heavily on the imperial system of measurement, which measures mass in pounds and ounces and height in feet and inches, most other countries use the metric system, which measures mass in kilograms and grams…

Mastering Percentage Subtraction

Mastering Percentage Subtraction

You have two options if you have to subtract percentages as part of a math problem. With the first method, you work out the percentage value and subtract it from the original value. With the second method, you work out…

Identifying Female Deer: A Guide

Identifying Female Deer: A Guide

How to Identify a Female Deer. Female deer, known as does, have a different appearance and behavior pattern than their male counterparts. Identifying a female deer may bring challenges, however, if you don’t know what to look for. Follow these…