1,382 Answered Questions for the topic Linear Equations

07/30/20

#### Please help with augenmented matrix of a linear system of equations and is in a Reduced Echelon form

Matrix is an augenmented matrix of a linear system of equations and is in a Reduced Echelon form.If the system has only 1 solution, then A.)a=1, b=0, c can be any valueB.)a=1, b=1, c=0C.)a=0,... more

07/30/20

#### Use the Eigenvalue Method to solve the following system of ODES

Use the Eigenvalue Method to solve the following system of ODES:  Hint: The corresponding coefficient matrix has a pair of complex eigenvalues.Please show steps.
Linear Equations Linear Algebra

07/30/20

#### State the problem in linear programming terms and solve it using the simplex method.

A furniture manufacturing company plans to make two products chairs and tables from its available resources, which consist of 400 board feet of mahogany timber and 450 man hours of... more
Linear Equations Math Linear Algebra Algebra

07/20/20

#### Algebraic word problem

Given that y = ax + b/8. When y = 1, x = 13 and when y = -1, x = -3. What is the value of b?
Linear Equations Math Linear Algebra Algebra

07/20/20

#### Boat rate of change problem

A boat travels with the current at 21 km/hr and travels against the current at 13 km/hr. The speed of the boat in still water is v km/hr. What is the value of v?
Linear Equations Math Linear Algebra Algebra

07/20/20

#### Fraction word problem

Alex's age now is 6/7 that of Kate's. Eight years ago, Alex's age was 2/7 as much as Kate's present age. Kate is now k years old. What is the value of k?
Linear Equations Math Linear Algebra Algebra

07/20/20

#### Fraction word problem

A fraction is equivalent to 6/7. It's denominator is 5 more than its numerator. What is the denominator of this fraction?
Linear Equations Math Linear Algebra Algebra

07/20/20

#### Airplane rate of change problem

Flying against the wind, a plane travels 2,400 km in 6 hours. Flying with the wind, the plane travels the same distance in 4 hours. In the absence of wind, the speed of the plane is k kilometers... more
Linear Equations Math Linear Algebra Algebra

07/20/20

#### Algebraic word problem

The sum of the digits of a 2-digit number is 7. If the digits are reversed the new number is 32 more than 10 times the tens' digit of the original number. What is the original number?
Linear Equations Math Linear Algebra Algebra

07/20/20

#### Age difference word problem

Julia's age now is half that of Nicola's. One year from now, Julia's age will be three-fourth of Nicola's present age. Nicola is now n years old. What is the value of n?
Linear Equations Math Linear Algebra Algebra

07/20/20

#### Airplane rate of change problem

Flying against the wind, a plane travels 2,000 km in 5 hours. Flying with the wind, the plane travels the same distance in 4 hours. The speed of the wind is s kilometers per hour. What is the value... more
Linear Equations Linear Algebra Finite Math

07/19/20

#### Solving Systems of Equation with row operations

3x - y + 5z = 14 2x + 3y + 4z = 7 x + y + z = 2
Linear Equations Linear Algebra Finite Math

07/19/20

#### Solving Systems of equations with row operations

2x - y - 5z = 11 x + 3y + 2z = 14 3x + 8y + 7z = 35
Linear Equations Math Linear Algebra Algebra

07/10/20

#### PLS HELP :)) i am not sure how to solve this problem

The cost of making 11 tables is $1,140. The cost of making 25 tables is$1,560. Assume this is a linear relationship.﻿What is the cost per table? Write a linear equation that tells you the total... more

07/07/20

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