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What is the harmonic mean? How to calculate the harmonic mean?
What is the equation of a circle? How to derive the equation of a circle?
1. Think of any positive whole number. No fractions, no decimals,no percents. 2. Double that number. 3. Add 10 to that result in step 2. 4. Divide
This lesson will explain clearly how to do synthetic division
A great variety of 4th grade math problems your students will love
Some geometry postulates that are important to know in order to do well in geometry
So you want to know how to find the area of a kite? Here is how
The law of detachment in geometry is clearly explained here.
What is segment addition postulate and how can we use it?
What is an isometric drawing and how can I make it?
What are the properties of a parallelogram? Explore them here
3rd grade math. See the math that is taught in 3rd grade
Second grade math. See the math that is taught in second grade
First grade math. See the math that is taught in first grade
Kindergarten math. See the math kids need to know in kindergarten
Great word problems involving quadratic equations with detailed solutions
Straightforward proof of the law of sines. Easy to follow and understand
Explanation of the ambiguous case of the law of sines.
Two great law of sines problems that will show you how to use the law of sines to solve real life problems
What is the law of sines? How do I use it to find missing lengths in a triangle?
Something interesting about a two-digit number and the algebra behind it.
Math problem about barking dogs to tease your brain. Can you solve it?
Problem: Jane has 1/6 of marbles in her hand from her bag of marbles. She wants to share it with her 3 friends, but she wants the same amount as the amount
Hard order of operations problems your teacher did not show you how to solve
A farmer has 260 meters of fencing and wants to enclose a rectangular area of 4200 square meters. what dimensions should he use? Area = length × width
PROBLEM Jane spent $42 for shoes. This was $14 less than twice what she spent for a blouse. How much was the blouse? SOLUTION Let x be how much she
Average age of Dipu and Apu is 22 years. Average age of Dipu and Tipu is 24 years. Age of Dipu is 21 years. What are the ages of Apu, and tipu ? Let
Elsa purchased a phone card for $25. Long distance cost .11 a minute using this card. Elsa used her card only once to make a long distance call. If the
The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child? Let x be the age of the youngest
Arvind is eight year older than his sister. in three year, he will be twice as old as his sister. how old was they are now? Solution Let x be a Arvind's
A factory has 800 workers. 40% of them are females. The management decides to employ more female workers to cope with the increasing demands of the workload
The cost to rent a bike for 1 person under 5 is 3£ over age 5 is 5.50£ calculate the cost of 4 under age fives and 3 over age fives what is the total cost?
Problem A sugar cookie recipe calls for 4 1/2 cups of sugar. Alison wants to make 2/3 of the normal amount of sugar. How much sugar will Alison use in
Comprehensive number theory test to see how well you understand number theory
Concept web about units of time from the smallest unit to the largest unit
Learn what the basic operations are in math with a graphic organizer
Failed the GED math test? Check out this free simulated practice test.
A scientist wants to dilute a 60% acid solution by adding some 20% solution. If she starts with 80 ml of the 60% solution, how many milliliters of the
Danny and Melissa decided to rent a campervan from motorhomerepublic.com for their 20-day vacation. They are already up from packing up their stuffs when
During a car race, two competitors will stop to fill up the fuel tank. One does it every 4 laps, and the other every 5 laps. When the race begins, after
On June 21st, there were 9/10 of a billion stars visible to the naked eye. On December 21st, there were 4/5 of a billion stars out visible to the naked
Learn to locate points quickly with this fun math game.
The two legs of a right triangle are the same length. The hypotenuse is 4 meters long. Find the length of the legs. Express your answer in simplified
The tank at a gas station contained 400 gallons of gas. A tanker truck that contained 8100 gallons of gas filled the station's tank. After that the tanker
This math game will help you review a wide variety of math topics while having fun at the same time.