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What is the equation for this A set of 7 numbers has a mean of 9 What additional number must be included in this set to create a new set with a mean that is 3 less than the mean of the original set?
Wiki User
∙ 13y ago
Call the specified numbers a, b, c, d, e, f, and g and the unknown number x. From the problem statement, (a + b + c + d + e + f + g)/7 = 9 [from the definition of "mean" of a set of numbers]. Also (a + b + c + d + e + f + g + x)/(7 + 1) = 9 - 3 = 6, or x/8 = 6 - [(a + b + c + d + e + f + g)/8], or x = 48 - (a + b + c + d + e + f + g).
Wiki User
∙ 13y ago
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What are the numbers missing in this equation 18-45-63?
This is a set of three numbers. It is NOT an equation. There is nothing missing from a non-existent equation.
How do we find all real numbers in a equation?
You solve the equation.
What is the domain of x²-14x 49 over 100x?
The only restriction in this case is that the denominator may not be zero. Solve the equation:100x = 0 That will tell you which numbers may NOT be included ni the domain.
What are complex root?
The complex roots of an equation are the complex numbers that are solutions to the equation.
The difference of two numbers is 17 Find the numbers if their sum is 87?
x - y = 17x + y = 87Add the two equations:2x = 104x = 52=================Subtract the first original equation from the second one:2y = 70y = 35
Is a number sentence a expression or equation?
numbers are equation because there are numbers in equation which make numbers equation
Prime numbers from 1 to 20?
The prime numbers from 1 to 20 are 2, 3, 5, 7, 11, 13, 17, and 19. The original answer incorrectly included 1, 9, and 15.
What are the numbers missing in this equation 18-45-63?
This is a set of three numbers. It is NOT an equation. There is nothing missing from a non-existent equation.
Does both numbers to be included in composite numbers?
The answer depends on the numbers.
How do we find all real numbers in a equation?
You solve the equation.
What is the domain of x²-14x 49 over 100x?
The only restriction in this case is that the denominator may not be zero. Solve the equation:100x = 0 That will tell you which numbers may NOT be included ni the domain.
What is the the answer to this problem these included zero and the counting numbers?
Whole Numbers
What is a combination of variables and numbers?
An equation.
What are the compex roots in mathematics?
The complex roots of an equation is any solution to that equation which cannot be expressed in terms of real numbers. For example, the equation 0 = x² + 5 does not have any solution in real numbers. But in complex numbers, it has solutions.
The difference of two numbers is 17 Find the numbers if their sum is 87?
x - y = 17x + y = 87Add the two equations:2x = 104x = 52=================Subtract the first original equation from the second one:2y = 70y = 35
What are complex root?
The complex roots of an equation are the complex numbers that are solutions to the equation.
What is the graph of the equation?
The graph of an equation is all of the answers that are true for the equation. A variable is an unknown number in an equation. Most equations are written with x and y variables. There are an unlimited amount of numbers that the variables can be to have the equation be true, so you would graph the equation to show the unlimited amount of numbers that make the equation true.
