train travels 250 miles at constant speed (x) in miles per hour. solve an equation that can be used to find the speed of the train if the time to travel 250 miles in 5 hours.

Q: A 450-gallon tank full of water is draining at a rate of 20 gallons per minute.

A: Initial amount of water in the tank=450-gallon Amount of water draining per minute=20-gallons 1)…

Q: Jada opens a 5-kg bag of dog food and fills her dog's dish with 0.25 kg of the content once a day.…

A: Solved below

Q: A train travels 616 miles at a speed of 55 miles per hour. Use the equation d=rt to find the time…

A: Given Speed=55 miles/hr Distance=616 miles

Q: Solve the equation. x(x2-x-1)=(x2-2x)(x+1)-2x

A: Expand both sides and combine like terms.

Q: Two cyclists, 120 miles apart, start riding toward each other at the same time. One cycles 3 times…

A: I am going to solve the given problem by using some simple algebra to get the required result of the…

Q: Solve. Don't forget to check!  x+5/x=-6

A: Add the tterms using LCD.LCD=x

Q: Solve linear equation. x/4 = 2 +(x - 3/3)

A: LCM of the denominators 4 and 3=12, so multiply both sides by 12.

Q: solve each equation algebraically. Verify your solution using a graphing utility.   x3+x2-4x-4=0

A: x3+x2-4x-4=0

Q: solve linear equation:6x-(3x+10)=14

A: Here we have been given a linear equation which we have to solve for 'x'.  The given equation is…

Q: A​ company's daily profit from the production and sale of electrical components can be described by…

A:

Q: Find the general solution  of the equation

A:

Q: One gram of protein contains 4 Calories, one gram of fat contains 9 Calories, and one gram of sugar…

A:

Q: Give a non-trivial example of an equation that has the solution x=−3/7.

A:

Q: 7-Solve equation. x-5/x2+1/x=6/x

A: This is a problem of cubic solution.

Q: A student has 63 coins worth a total of $7.95. Each coin is either a nickel (five cents) or a…

A:

Q: The range of a set of scores is 28, and the lowest score is 31. Write an equation to find the…

A: Given range or difference between lowest and highest score; 28 lowest score(l); 31

Q: Which equation will allow us to solve for x?

A:

Q: Assume that the box has no top, the material needed to construct the base costs $5 per square foot,…

A: Consider x to be the side length and y be the height of the box. The area of the box is x2+4xy. The…

Q: The equation y=18,000(0.64)^x represents the value of a car after x years based on this equation…

A: Given value of car y= 18000*(0.64)x  x=no of years  The value of car after 6 months means x= 1/2…

Q: rectangle is 5 inches long and 2x inches wide. The value of the perimeter (in inches) is equal to…

A: Given Length of rectangle=5 inches Width of rectangle =2x inches

Q: The solution set of the equation | x | = 5 is { ________ }.

A: To find the solution

Q: set up an algebraic equation and solve each problem. The ratio of male students to female students…

A: To find the number of male and female student

Q: Solve linear equation. 2(x - 1) + 3 = x - 3(x + 1)

A:

Q: A car travels 450 miles in the same time that a motorcycle travels 390 miles. If the car's speed is…

A:

Q: It is recommended that one fire extinguisher be available for every 6, 000 square feet in a…

A: For every 6000 sq ft one fire extinguisher is available in a building. We have to find the number of…

Q: A candy distributor needs to mix a 20% fat-content chocolate with a 60% fat-content chocolate to…

A: topic - equation in one variable note : as per bartleby guidelines, we are supposed to answer only…

Q: solve for linear equation : 8(3x-1)=7(2x-4)

A: Since the equation is: 83x-1=72x-4

Q: Solve the linear equation: 3x/5 - (x - 3)/2 = (x+2)/3

A: the given linear equation is: 3x5-x-32=x+23 we have to solve the given linear equation

Q: Solve the equation for x, give EXACT answers,

A: the given equation is 5+2lnx=4 subtract 4 from both sides 5+2lnx-5=4-52lnx=-1

Q: In an equation, you want to get the variable... to disappear by itself on one side next to the…

A: In any equation, we want the variable to get on one side

Q: Where do I start when solving for x in this equation:…

A: We have4[ 2x - ( x + 3 )] = 6 (x - 9)4(2x -x -3) = 6 (x - 9)4( x - 3) = 6 (x - 9)

Q: A college student takes the same number of credits each semester. Before beginning college, the…

A: Suppose the student takes X credits each semester and he/she has Y credits before the beginning of…

Q: Solve the linear equation. 9x-6=-2+7x

A: Given 9x-6=-2+7x

Q: Two cyclist, 64 miles apart, start riding toward each other at the same time. One cycles 3 times as…

A: given: Two cyclist, 64 miles apart, start riding toward each other at the same time. One cycles 3…

Q: During migration, a monarch butterfly might fly an average of 50 miles per day. Which equation shows…

A: By distance time formula: Speed=distancetime Substitute Speed=50 miles/day, distance=m and time=d in…

Q: Every year, a video game console that cost $2500 loses around 10% of its value. a) Create an…

A:

Q: The value of a new vehicle is $45,745 in the year 2013 and decreases by 25% of its value each year.…

A:

Q: Write an equation that describes all points that are 8 units away from the point (2, -5)

A:

Q: Write a different equation with FOUR numbers whose sum equals 0, none of which are opposites. One…

A: 15+12-11-16 10+14-9-15

Q: Solve linear equation. (x + 1/4 )=1/6 +(2 - x/3)

A: Given the linear equation (x + 1/4 )=1/6 +(2 - x/3). We need to solve the above linear equation.

Q: To solve a linear equation, use the ________ and ________ properties of equality to_______ the…

A: To solve a linear equation, use the Subtraction and Addition properties of equality to isolating the…

Q: Variables

A:

Q: Solve y' = -xe

A: The given differential equation is                      y'=-xex It can be written as…

Q: The equation used to predict how long a cold will last is ŷ=-1.8 + 0.09x1 + 3.2x2 – 1.9x3, where…

A: From the given information, the regression equation is y^= ̶ 1.8+0.09x1+3.2x2 ̶ 1.9x3. Here, x1 is…

Q: What value of x makes the equation -5x- (-7– 4x) = -2(3x-4) true?

A:

Q: mirror should be centered on a wall. The mirror is 36 inches wide and the wall is 18 feet wide.…

A: It is given that the width of the wall is 18 feet and width of the mirror is 36 inches.

Q: Solve : (x+y)*- a.

A:

Q: When solving linear equations, how do we know when they have Many Solutions?

A: When we solving linear equations then our aim to be find all unknown variable . Now,  Assume we…

Q: Solve the equation. x2ex + xex - ex = 0

A: The equation is given as x2ex+xex-ex=0

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.