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Rate and Fractions Problem
Fred washes the car in 8 minutes. Al washes the same car in 6 minutes how long will it take both of them to wash the car together?
Using the Area Formula
Determine the total amount of fertilizer in ounces (oz) needed to fertilize a rectangular lot with dimensions 24 yd by 21 yd if 3 oz of fertilizer is needed …
Equations with Absolute Value
Here is the question. It is 3 absolute value of x divided by 9 plus 7 equals 8.
The question asks to write and solve an inequality to find the length of a rectangle and to write an inequality to find the area of the rectangle. …
Using the Substitution Method
Use Substitution to solve the system of equations 4x + y = 0 2y + x = -7
Solve negative six less than or equal to 3x-15 less than equal to 12. Graph your solution.
System of Inequalities
How do you solve: Ho sells ice cream cones at the county fair. She has to rent the equipment for $48 and spend $0.53 on ingredients for each cone. Write …
Combining Like Terms
Can you use the combining like terms method for something like this? 9a-a+15-10a-6
I have a question about reciprocals in One Step Multiplication equation section. My book shows the reciprocal of -2/3 as -3/2. Is this correct? …
In a paragraph, describe how to simplify each expression. 161/2
Writing Linear Equations Given a Graph
I am in online school, and in my algebra 1 class there are several questions that have to do with writing an equation in slope intercept form from the …
Writing a System of Equations
At the end of the 2000 WNBA regular season, the Houston comets had 22 more victories than losses. The number of victories they had was three less than …
Solving Quadratic Equations
A person plants two square plots for garden. the of the areas of both plots is 225 square feet. If the side of one plot is 3 feet longer than the side …
Writing and Solving Equations
Find the measure of the largest angle of a triangle if it's 3 times as large as the smallest angle and the second angle is 20 degrees larger than the …
Writing and Solving Systems of Equations
The sum of Eli's age and Cecil's age is 60. Six years ago, Eli was three times as old as Cecil.Find Eli's age now. Karin from Algebra Class Says: …
Distance Formula Word Problems
If a person can travel 20 miles upstream in 10 hours and the same distance downstream in 2.5 hours, find the rate of the current. Karin from Algebra …
Writing and Solving a System of Equations
Please help me to solve this problem: From 1970-1990, the average annual per person consumption of whole milk in the U.S. dropped from 103 to 43 quarts. …
System of Equations Word Problem
Five hats and three scarves cost $99. While three hats and five scarves cost $85. Find the cost of one hat.
Variables on Both Sides
I NEED TO GET HELP ON A PROBLEM TOWARDS THE END OF THE PROBLEM. I'M NOT SURE WHY THE NEGATIVE ENDS WITH A POSITIVE ANSWER IN THIS EQUATION: 4P+40=26P …
Solving Linear Systems of Equations
12 apples & 8 guavas total cost is Rs. 76/-. 8 apples & 12 guavas cost is Rs. 64/-. What is the cost of each apple & guava?
Hi! Your site has really helped! I just have a little question... What happens when the inequality is like follows: x>11 + y? How do we rewrite the …
Interest Word Problems
Sam invested 11000 in an acct that pays 11% apr. How much additional money must be invested in an acct that pays an apr of 14% so that the total interest …
Inequalities Word Problem
Fred bought 3 shirts, each of the same price and received less than $12 change from a $50 bill. What is the maximum cost of 1 shirt?
Linear Systems of Equations
I'm using graph and check to solve the linear system. My first equation is: 2x-y=2 I changed it to: -y=(-2)x+2 What do I do with the minus sign? …
How To Solve A Problem With Variables On Both Sides?
I can't figure out how to solve an equation with variables on both sides. For example: 25u+74=23u+92
Area formula problem
A room is 15 ft long and y feet wide. How many square yards are in the floor area?
Writing a System of Equations
Find the equations to: Alice spent $131 on shoes. Sneakers cost $15 and Fits cost $28. If she bought a total of 7 shoes, then how many of each kind of …
12 is 6 times the difference between a number and 3. Find the number.
Functions Word Problem
The value of a 1996 Mustang, in thousands of dollars, is a function of the age a of the car, in years. Let V=f(a) be the function that represents the value …
System of Equations Word Problem
The telephone company offers two types of service. With Plan A, you can make an unlimited number of local calls per month for $18.50. With Plan B, you …
Translating Algebraic Expressions
Translate,what is the quotient of the sum of two numbers and twenty? Algebra Class Says: Let's first talk about the vocabulary: quotient …
Rate Of Change And Slope
(-2,-5)(7,8)Is the answer negative 3 over 21 which is -7?
Estimating Decimal Products
How do I estimate the problem 10.78x1044.3092
Algebra Word Problem
The product of two fractions is 1/9. The larger fraction divided by the smaller fraction is 4. What is the sum of the two fractions? Express your answer …
Equation with Variables
Please help solve this problem: 2/3=4J/6
Solving a 2 step equation Involving Rational Numbers
2/3 = -1 5/9 + 5/8x I'm getting stuck on finding the common denominator with a mixed number to get this answer. Help!! Karin from Algebra …
Problems With Sales Tax
The Sheng family had dinner at their favorite restaurant. A 10% sales tax was added to their bill. Amy paid the bill with a $20 gift certificate plus $23.5. …
The length of a rectangle is 4 times the width. The perimeter of the rectangle is 80cm. Find the length of each side.
How do I re-arrange x-y+2=0 to the y=mx+b so I can put it into a table of values?
Equations with Variables on Both Sides
How do I solve: 3/7w - 11= -4/7w
Equation with Variables on Both Sides
Suppose that a highway rises a distance of 215 feet in a horizontal distance of 2640 feet. Express the grade of the highway to the nearest tenth of a percent. …
Find f(g(x)) g(x)=2x^2+4 and f(x)=x-2/4
1. Find all numbers for which the rational expression is undefined... 5/v-6 2. Divide and simplify... f+4/f-1 divided by 7f+28/f-6 …
Doomtown is 200 miles due west of Sagebrush , and Joshua is due west of Doomtown. At 9am Mr Archer leaves Sagebrush for Joshua. At 1 pm. Mr Sassoon leaves …
How do you reduce or simplify this number 2100/1050?
System of Equations Addition Method
-2x+5y=1 x-2y=4 The answer in the math book is x=22 y =9 I've been getting a different answer.
Solving Algebra Word Problems
I have a word problem and no matter how hard I try I can't figure out how to do it and I need to figure out how to do these problems for my test. I need …
Domain and range of a graphed function
Please explain to me how to determine the domain and the range of a graphed function. They have it in the book, but it wasn't clear enough for my daughter. …
Using Area and Volume Formulas
A pizza box measures l7 inches long, l6 l/2 inches wide, and 2 inches high. what is the total area of the box and what is the volume?
Vertex of Absolute Value Equations
CALCULATING THE VERTEX OF AN ABSOLUTE VALUE OF THE EQUATION WRITE DOWN WHAT IS INSIDE THE ABSOLUTE VALUE SYMBOL AND SET EQUAL TO ZERO SOLVE FOR "X" …
Systems of Equations Substitution Method
Hello, Here I am back in school after 22 years. Math is one of my requirements, before graduation in 2011. However, I am having difficulty understanding …
In the substitution method, how do you know which variable to begin with?
Area of a Parallelogram
Need help... The area of a parallelogram is 252 cm2 and base is 42 cm. Use ALGEBRA to find the height of the parallelogram. Include your formula and …
Solving Systems Using the Substitution Method
Please help solve this system using the substitution method. 2x+3y=10 y=-x+2
System of Inequalities: Graph the following: 2x+3y>6
Systems of Equations Problems
Solve this problem by using a two order system. A man bought 42 stamps, some 13¢ and some 18¢. How many of each kind did he buy if the cost was $6.66? …
Understanding Linear Graphs
I have multiple word problems that are really giving me a hard time. I would really appreciate it if someone could help me. 1) The equations 3x+4y=8 …
Systems of Equations Word Problem
All 231 students in the french class went on a field trip. Some students rode in vans which hold 7 students each and some students rode in buses which …
Simplify Rational Expressions
Please help me to simplify the following expression: 2x+8/x^2-16
Writing and Solving Equations
The product of 2 consecutive positive integers is 398 more than the next integer. What is the largest of the 3 integers?
Will you explain what direct variation is and give some examples please. This would be greatly appreciated!! Karin from Algebra Class Says: …
Systems of Equations Story Problem
Please help with the following problem. Tickets to a movie cost $7.25 for adults and $5.50 for students. A group of friends purchased 8 tickets for …
System of Equations Word Problems
I really NEED help with these System of Equations word problems! I did the ones on this website but I want an example that can help with mixes of trail …
I am having difficulty answering the following questions: Diagram this statement. Then answer the questions that follow. One fourth of the 64 marbles …
I need help solving the following inequality: -4<3-2x<20
Graphing Using the Slope and Y-Intercept
How do you graph using the slope and y-intercept like in this problem 2y+4x=0? Karin from Algebra Class Says: In order to graph this equation, …
Polynomial Word Problem
I have an Algebra Word Problem that I cannot solve. Can you please help. The problem is: The sum of two integers is 10. If their product is 24,what …
Decimals in Multi-Step Equations
Please help with this problem: 3.9w-17.9= -2.3 Karin from Algebra Class says: You solve equations with decimals the same way that you solve …
The Difference between a Monomial and a Polynomial
Why is -2 a polynomial and -5 is a monomial? I do not understand the rationale behind this and my textbook is not clear. Also how can 0 be both? …
Systems of Equations Help
I have a systems of equations word problem that I need help with: Since my uncles farmyard appears to be overrun with dogs, and chickens, I asked him …
Dimensions of a Rectangle Word Problem
A rectangle has area 12a squared and a perimeter 14a. What are the dimensions of the rectangle and how do you solve this?
how to solve inequalities Not rated yet
Thank you for your program. Please solve the inequality -14>-a+4-5a and graph its solution if it is a real number. Karin from Algebra Class says: …
Average Algebra Problem Not rated yet
Here's my problem: Ahmik's scores on the first four of five 100-point history tests were 85, 91, 89, and 94. If a grade of at least 90 is an A, …
Age Problem in Algebra Not rated yet
Help me to solve this age problem in algebra: Ana is ten years older than Belinda, while Belinda is 5 years younger than Celina. Twice Aana's age is …
How to Solve Equations Not rated yet
Can you please show me how to solve equations such as this: 4x-5=12x-69. X= Karin from Algebra Class says: This equation has variables on …
Solving Equations with Fractions Not rated yet
Please help to solve this equation with fractions: -5= -19- x/7 Karin from Algebra Class says: Whenever you have a fraction within an equation, …
Solving Equations with Fractions Not rated yet
How do I solve this? 1/3(7y-1)+1/6(4y+7) Karin from Algebra Class says: I would love to help you solve this equation, however, we need to …
Equations Not rated yet
So I don't know how to do this problem: 2=5+n/10 Karin from Algebra Class Says: With this equation, I am going to assume …
One step equations Not rated yet
I'm working on this y + 5=-12 answer says y=-17 I did 12-5 which equaled 7. Your answer says 17,do I carry the 1 down to make it 17? to get the answer …
Sign Up for Algebra Class E-courses
"I'd like to start off by relaying my sincerest gratitude for your dedication in teaching algebra. Your methodology is by far the simplest to follow, primarily because you take the time to include the small steps in between that most other teachers leave out.
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Tom - United States
"I just wanted to write and basically thank you for making such a wonderful website! I'm 20 years old and about to take a basic placement test for college. I wanted to brush up on my Algebra skills and I stumbled upon your site. I'm amazed at how simple you make it and how fast I'm remembering Algebra! I don't remember getting most of the answers right when I had an actual teacher in front of me teaching this. Thanks a lot!"
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Noel - South Africa
This is an amazing program. In one weekend I used it to teach my Grade 9 daughter most of the introductory topics in Linear Relations. I took her up to Rate of Change and now she can do her homework by herself.
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