1,388 Answered Questions for the topic Linear Equations
Linear Equation Help
Margaret purchased a new bar of soap. Three days after she originally used the soap, she was curious how much soap per day she was using. She decided to weigh her soap and found that the bar was... more
i’m not so sure if i can do this problem.
George’s car has a 20 gallon gas tank. travel 22 miles per gallon. If M is the number of miles driven since the last fill up, he can use this formula to find out how much gas is left in the gas... more
Kathy has a more cycle with a 4 gallon gas tank. On average, she can travel 60 miles per gallon.
if M yes the number of miles driven since the last fill up, what formula can she use to find out how much gas is in left in the gas tank. how did you decide how to use or not use the value for in... more
Susan has a piggy bank into which she puts only nickels. The amount of money in dollars D in the bank is given by D = n/20, where n is the number of nickels in the piggy bank.
if Susan has 80 nickels in her piggy bank how many dollars does she have.if Susan has 94 Nichols in her piggy bank, how many dollars does she have. Based on your answers to parts A & B explain... more
The car is stopped at a red light. When the light turns green, the car begins moving forward. The distance in feet of the car from the light after t seconds is given by the equation D = 4t ^ 2
how far is the car from the light after 5 seconds. how far is the car from the light after 10 seconds.how far is the car from the light at t = 0 seconds explain.
If y = 1/2x + b, what is the y intercept?
I need help on my homework.
the graph of a function is a line that passes through the points (1,5) (3,11) and (7,y). what is the value of y?
i need help with this pleaseee
The sum of 8 times a number and 9 is 3. Use the Variable c for the unknown number.
how to find the equation of a line through the point (1,3) if slope is undefined
Linear equation help
Ana decides to start a tutoring company. She finds a place to rent for $400 dollars each month. Her tutoring costs $25 dollars per hour. Write a linear equation to model the problem. What are the... more
Linear equation with fraction and solve x and y
y= -6/5x -7 solve for y if x =2Solve for x if y= 3 please show the steps
Linear Equations Algebra 1
What is " y = ⅗x + 4" in standard form using integers?
-3x - 5y = 20-3x + 5y = 45x - 3y = 20-3x + 5y = 20
Determine X and Y
The sum of two number is 20, the first number is one less than two times the second number. Solve for each number
Linear Systems Question
Let t ∈ R and consider the linear system described by the following augment matrix: A = [ 1 -1 | 0 ] [ 1 1 | 1 ] [ 0 1 | t ] For which values t does this system have:(i) no solutions(ii)... more
Linear Equations Word Problem
jenny bought 8 apples and 6 oranges for $9.60. steve bought 7 apples and 3 oranges for $6.60 find the cost of each
this is a linear equation and i need help
In 1990, the cost of tuition at a large Midwestern university was $93 per credit hour. In 1999, tuition had risen to $210 per credit hour.Determine a linear equation to represent the cost of... more
True or False Linear Systems
Determine which of the following statements are true and which are false. (a) The equation 4x − sin(1)y + 2z = 3√5 is linear.(b) The equation xy + 4z = 4 is linear. (c) If a system of linear... more
Systems of Linear Equations Questions
Find all solutions to the following systems of linear equations: (a) x + y = −5 2x − 4y = −4 (b) x + y − z = 1 x + 2y + 2z = 1 2x + y − 5z = 2
Linear Systems Equation Solutions Questions
Determine how many solutions each of the following linear systems have:(a) 6x + 8y = 5 −2x + 9y = −6 (b) 5x + 2y + z = 4 −x + 8y + z = −2 (c) 2x − 3y = −1 3x + y = −4 x − 7y = 2 (d) x + 3y + 3z = 3... more
Algebra Choir Ratio Problem.
The ratio of females to males in the choir is 7 to 4. If twelve males and three females are absent from a particular practice, the ratio of females and males is five to two. How many members of the... more
The formula T = 3x + 2y + f can be used to calculate the total number of points made in a basketball game where: x = number of three-point goals y = number of two-point goals f = number of free... more
Linear Equations Linear Algebra
Analyse the case below in regard with the linear programming technique
A good example of how to use operations research analysis is to consider the plight of farmer Jones. He must decide how many acres of corn and wheat to plant this year. One acre of corn... more