1,472 Answered Questions for the topic Linear Equations

Linear Equations

02/12/22

Use a system of linear equations with two variables and two equations to solve.
If an investor invests $24,000 into two bonds, one that pays 4% in simple interest, and the other paying 2% simple interest, and the investor earns $690 annual interest, how much was invested in... more
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Linear Equations Statistics Linear Algebra

02/12/22

What are the decision variables, contraints and objective function for this LPP
I'm starting to learn LP and I am unable to solve this effectively. Can someone please help derive the decision variables, constraints and objective function for this problem so I can solve... more
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Linear Equations

02/10/22

Find an ordered pair (x,y) that is a solution to the equation

Find an ordered pair (x,y) that is a solution to the equation 4x-y=-4
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Linear Equations

02/10/22

Linear system question.
Henry wrote a multiple-choice test on which he answered 23 questions correctly for a total of 73 points. Ifthe test consisted of 20 two-point questions and 12 five point questions, then how many of... more
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Linear Equations

02/10/22

What is the linear equation of a line with a rate of change of −1/2 that passes through the point (0,4)?
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Linear Equations Math Linear Algebra

02/10/22

Linear Inequalities Maximum Revenue
Christy sells her photographs at a booth at a street fair. At the start of the day, she wants to have at least 25 photos to display at her booth. Each small photo she displays costs her $4 and each... more
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Linear Equations Equations Quadratic Equation

02/04/22

For a function f, the table gives some values of x and their corresponding value of f(x). What is the y-coordinate of the y-intercept of the graph of y=f(x) in the xy-plane?
The table : X=0; f(x)=7 X=2; f(x)=8 X=5; f(x)=0
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Linear Equations Linear Algebra Algebra Functions

02/03/22

Write the equation of the line with gradient 5 and y-intercept -4
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Linear Equations Linear Algebra Algebra Functions

02/03/22

What is the gradient of the straight line joining (6, 5) and (8, 6)?
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Linear Equations

02/01/22

Write a linear equation from a slope and a point
Alinewithaslopeof 1 9 passesthroughthepoint (9, 6) .   What isitsequationin slope -intercept form?
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Linear Equations Calculus

01/30/22

Find the linear approximation L(x)=f(a)+f'(a)(x-a). f(x) = 4 x^2 e^(20 + 5 x) at a= -4
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Linear Equations Linear Algebra Algebra Equations

01/28/22

Unsolvable 8th Grade Question
In a multinational company that employs Indians, Turks, Chinese, Germans and Australians, the Indians are one less than one-third the number of germans and three less than half the numbers of... more
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Linear Equations Linear Algebra Algebra Equations

01/28/22

Unsolvable 8th Grade Question
In a multinational company that employs Indians, Turks, Chinese, Germans and Australians, the Indians are one less than one-third the number of germans and three less than half the numbers of... more
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Linear Equations Math Linear Algebra Algebra

01/28/22

Linear inequality word problems
Laila is buying her friend roses for his birthday. She has $25 to spend, and wants to save at least $1.50 for a card. If roses are $2.00 each, what is the maximum number of roses Laila can purchase... more
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Linear Equations Math Linear Algebra Algebra

01/27/22

Linear inequality word problems
A car traveling 60 miles per hour approaches an area with a 50 mph speed limit. In order to reduce the speed to 50 mph or less, the driver slows down the car at a constant rate of 15 feet per... more
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Linear Equations

01/24/22

I need help with a linear equations question
Hi I am currently having issues solving a question relating to linear equations: A family of lines have equations of the form y=-2x+c, where c is a positive number.Let O denote the origin, and let... more
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Linear Equations Math Linear Algebra Algebra

01/21/22

Linear Equation Word Problems
Cecilia rents a moving truck that uses a gallon of gas every 10 miles for $29.95 per day. She incurs an additional charge of $0.89 for each mile traveled and must return the truck with the same... more
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Linear Equations Math Linear Algebra Algebra

01/20/22

Linear Equation Word Problems
Alma and Erika work part-time stocking shelves at a grocery store. At 7:00 a.m on Saturday, Alma begins unpacking boxes at a rate of 1 box every 6 minutes. Erika joins her at 7:45 a.m unpacks 1 box... more
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Linear Equations

01/20/22

How to construct a linear equation of this question and solve it?

A rower travels upstream at 6 km/h and back to the starting place at 10 km/h. The total journey takes 48 minutes. How far upstream did the rower go?
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Linear Equations Math Linear Algebra Algebra

01/19/22

Linear Equation Word Problem
Oliver mows lawns in his neighborhood. He charges $10 for each regular yard he mows, and he charges an extra $5 for each large yard that he mows. In one week he mowed 6 more large yards than... more
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Linear Equations Math Linear Algebra Algebra

01/19/22

Linear Equation Word Problems
A meteorologist estimates that on a sunny day, the air temperature decreases by about 4 degrees fahreheit every 1,000 (ft) of elevation gain. On a certain day, the air temperature outside an... more
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Linear Equations Math Linear Algebra Algebra

01/19/22

Linear Equation Word Problems
A meteorologist estimates that on a sunny day, the air temperature decreases by about 4 degrees fahreheit every 1,000 (ft) of elevation gain. On a certain day, the air temperature outside an... more
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Linear Equations Math Algebra

01/19/22

Linear Equation Word Problems
A barber offers two options at his barbershop: a $15.00 regular haircut and a $20.00 deluxe haircut. On a certain day, the barber gave r regular haircuts and 3 fewer deluxe haircuts than regular... more
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Linear Equations Math Algebra

01/17/22

Linear Equation Word Problems
Camille and Hiroki have decided to start walking for exercise. Camille is going to walk 7 miles the first day and 3 miles each day after that. Hiroki is too busy to walk on the first 2 days, so... more
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Linear Equations Math Properties Of Equality

01/12/22

How do I describe the properties of equality used to solve linear equations?
I really don't get this question and my brain just doesn't follow it at all. Like how do I describe something like that?Please help me!
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