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What are some real life examples of linear equations?

Another example of a real-life linear equation is estimating the dimensions of a set of four shelves whose width needs to be five times its height, given that the wood available for use is 72 feet. Another example is to estimate how much a store pays the manufacturer for a calculator that is being sold for $80 and has been marked up by 16 percent.\nLinear equations are used in the form of mixing problems, where different percentages are combined to get a new percentage. For instance, water can be mixed with a secondary liquid such as alcohol. A linear equation in this case estimates the amount..

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What are some online math calculators?

By simply typing in "calculator" into a search bar in a browser such as Chrome, Firefox or Safari, a built-in calculator provided by Google appears. However, this calculator is just useful for basic math calculations. If you are looking for a calculator that can help you with some higher-level math, then MathWay.com and WorphramAlpha.com are two very good options. Each can provide you with a vast amount of resources to solve math problems including linear equations, systems of equations, integrals, derivatives and inequalities.

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How do you know if a serial number has been stolen?

Serial numbers provide unique markers for equipment such as phones, according to Wired. To avoid purchasing a stolen phone, Wired suggests contacting the phone's manufacturer directly.\nFor example, Apple offers iPhone users serial number tracking services, TechCrunch states. When someone steals an Apple product, the original owner contacts the company to report the device as stolen. Apple updates the serial number in its database, and when new buyers search for the serial number, the company informs the new buyer that the device is stolen.\nCompanies such as Trace provide free serial num..

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How to calculate minutes per mile?

Measure the amount of miles traveledMake sure this measurement is in exact miles using standard form (no fractions). For example, if the distance is 10 1/2 miles, it should be written as 10.5.Determine the time it took to travel the above distanceThis figure should be converted into minutes if it is not already. Multiply the number of hours by 60 (the number of minutes in an hour) to convert into minutes. If the time was 2 hours, you would multiply 2 by 60, which equals 120 minutes. \nDo the mathDivide the distance in miles by the time in minutes. For this example, 10.5 miles / 120 minutes = 0..

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What is the answer to a division problem called?

A quotient is found by dividing one number by another number. When dividing two numbers which are positive, the quotient is also positive. Similarly, when dividing two negative numbers, the result is also positive. However, when dividing a positive and a negative number, the result is negative.\nA number can never be divided by zero (5/0), as this implies that a pie of size zero is split evenly in five pieces, which cannot happen. The response to a "divided by zero" problem is NOT zero — instead the term is that it doesn't exist (also known as DNE).\nHowever, a number can be divided by ..

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What is a 3-D pentagon called?

A three-dimensional pentagon could also be referred to as a pentagonal prism. A pentagonal prism is made by a pentagon being extruded so that it forms a five-sided elongation capped with two regular pentagons. (A regular polygon is one with sides of equal length and equal angles in between them.) This is similar to the way a rectangular prism or a cylinder is formed.

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How do you move two decimal places?

Remove the decimalsRemove the decimals completely from numbers with two numerals after the decimal point in order to multiply the two numbers together. An example of a number requiring the removal of two decimal places is 23.45. After removing the decimal, you would have 2345 to multiply.Multiply the adjusted numberMultiply the adjusted number without the decimals by the second number in the problem. For example, 2345 x 2. The product of the multiplication problem is 4688.Move the decimal back into placeReplace the decimal in the answer by counting two positions from the end of the number and ..

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What is a free math problem solver?

Some free math problem solvers also provide more than the basic answer to a specific math questions. These types of free math problem solvers also provide an explanation for how the result is reached; however, math problem solvers are not guaranteed, error proof methods for solving equations. Consider using these solvers as a means of checking the accuracy of completed math work rather than relying on them exclusively for answers.

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What are the Roman numerals for "1995"?

A letter only appears a maximum number of three consecutive times in a given number. When a letter has a value smaller than the one to its immediate right, the smaller one is subtracted from the larger. When a letter has a value equal to or larger than the one to its immediate right, the number values are added together. In the number 1995, the first M equals 1,000, the CM equals 900 (1,000 minus 100), the XC equals 90 (100 minus 10) and the V equals five.

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What are the factors of 66?

The number one is always a factor of a whole number, as is the number itself. Some clues exist to indicate factors of various numbers with two or more digits. For example, two is always a factor of any whole number that ends in zero or an even number. Numbers ending in zero or five have five as a factor, and any number ending in zero has 10 as a factor. Knowing the factors of numbers helps in reducing fractions to lowest terms.

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