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What is 4.5 as a decimal?

One way to rewrite a percent in decimal form is to determine the number as a fraction of 100. The easiest way to do that is to create a division problem in which the percentage is the numerator and 100 is the denominator. Since 4.5 already has a decimal in it, the fraction can be multiplied by 10 over 10 to make it a rounded number. Thus, the equation becomes 45 divided by 1,000. It is important to note that 10 divided by 10 is one and does not ultimately change the value of the equation. The resulting answer is .045. Another easy way to create the decimal form of a number is to move the decim..

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How do you find the least common multiple?

Determine the prime factors of the two numbersFactor the two numbers in the equation until the factors are only prime numbers. For example, to find the least common multiple of 18 and 24, first determine the prime factors of 18 (3 x 3 x 2), and then find the prime factors of 24 (3 x 2 x 2 x 2).Note the most common prime numbersUnderline the factors that appear most frequently in each prime factorization.Multiply all of the prime factors you underlined together and solveWrite an equation that finds the product of the frequent prime factors, and multiply these numbers together. Using the example..

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How do you subtract fractions?

Ensure the denominators are the sameCheck that the denominators are the same in the fractions that are being subtracted. If they are different, find a number that is divisible by all current denominators. Multiply both the numerator and the denominator by the same number in each fraction to keep the value of the fraction the same. This makes all the denominators the same and allows them to be subtracted. \n\nFor example, if subtracting 1/6 from 1/2, the denominator in both fractions needs to be 6 because that is the smallest number that is divisible by both. Multiply the numerator and the deno..

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How do you calculate land area?

To calculate the area of squares, rectangles and parallelograms, multiply the length times the width. To calculate the area of a circle, multiply pi by the radius squared. For triangles, multiply the base by the height, and divide the result by two. For oval areas, multiply the length by the width, and multiply the result by 0.8.\nFor areas of land without a scale drawing, take physical measurements. Mark the corners of the plot with ranging poles. Connect them with strings to mark the exterior of the plot. Measure each side, and make a scale drawing. Divide the drawing into standard shapes. U..

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What is the order of operations for evaluating expressions?

The difference between PEMDAS and GEMDAS is that the "G" stands for the more inclusive term "grouping symbols," as opposed to "P," which only stands for "parentheses." A bracket is an example of a grouping symbol. The phrase, "Please Excuse My Dear Aunt Sally" is often used to remember the order.\nFor example, for the problem 3^2 + 8 x 2 - 4, the order of operations is as follows: 9 + 8 x 2 - 4; 9 + 16 - 4; 25 - 4; and the answer is 21.

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What are the meanings of "monomial," "binomial" and "trinomial"?

A monomial is a number, a variable, a number multiplied by a variable or a product of variables, where all of the exponents are nonnegative integers. It is one term of a polynomial. A polynomial is therefore composed of monomials combined by addition, subtraction, multiplication and division. Variables of a monomial can only have whole number exponents; thus, an expression with a variable in the denominator or a variable with a negative exponent is not a monomial. Some examples of monomials are 2, y, 3z, xy and 2mn.\nTwo monomials combined by addition or subtraction are called a binomial. Each..

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How do you add positive and negative fractions?

Create a common denominatorFirst, you must create a common denominator. You find the lowest number that both denominators divide into evenly by multiplying the numbers together. For instance, if the fractions are 1/4 and -2/3, you multiply 4 and 3 together for the new denominator, 12. Multiply the numerators by the same number Next, you multiply the top numbers (the numerators) by the same number as the denominators. For instance, since you multiplied the 4 in 1/4 by 3 to reach 12, you do the same for the top to reach 3/12. On the other hand, you multiplied the 3 in -2/3 by 4 to reach 12, so y..

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What are some examples of rectangular prisms?

The rectangular prism is a special type of cuboid called a convex polyhedron, which is characterized by having six flat quadrilateral faces. Its label "prism" is due to its characteristic of having a consistent cross-section across one of its faces. This feature lends itself to the concept that the opposite faces of a rectangular prism are congruent or equal. Another characteristic of the rectangular prism is that all angles in its corners are 90 degrees in measurement.\nSpecial cases of the rectangular prism include the square cuboid, wherein at least two faces of the solid are square-shaped...

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What is the way to add vectors graphically?

Vectors are used in a variety of mathematical situations and are often used to determine the distance that is between two points, whether the points are mathematical or graphical. The points that are in between the vectors are referred to as the resultants, meaning they are the result of the distance between two vectors. When two vectors are added together, the resultant is often a lower number or distance than the total number or distance of the vectors. To find the resultant of two vectors mathematically, the Pythagorean theory can be used. This theory involves the placement of the vectors t..

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How many paychecks do you get per year if you're paid biweekly?

In order to calculate the number of pay periods in a year, you divide the number of weeks in a year (52) by the frequency of payroll payments. Fifty-two divided by two equals 26. This figure may be adjusted to compute for unpaid vacation time. For a worker who receives two weeks of unpaid vacation, the equation changes. Subtract the unpaid weeks from the total number of weeks in a year, and divide that number by the payroll frequency. Your answer would then be computed by dividing 50 by two, giving you 25 pay checks per year.

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