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
Sum of 3 consecutive odd integers is -3, what are the integers? Solution A number is odd if it has the following format: 2n + 1 Let 2n + 1 be the
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.
A table to help you visualize the trigonometric ratios of Special Angles
Find out how to use the unit circle to find sin(30 degrees), sin(60 degrees), cos(30 degrees), and cos(60 degrees)
Using the-30-60-90 triangle to find sine(30 degrees), sin(60 degrees) cos(30 degrees), and cos(60 degrees)
Using the unit circle to find sin(45 degrees) is what this lesson will teach you
Learn what a unit circle is quickly and easily.
Learn trigonometry quickly and easily with these crystal clear lessons.
Learn what the sine ratio is with an easy to follow lesson and explanation
An activity about tangent ratios that will help you understand where the word tangent came from
In this game, Identify fractions before they hit the bottom. This game is really fun and addictive
Adding and subtracting integers game
Learn what compensation is in math. See how to use compensation to do mental math
Learn what cryptarithms are and how to solve them
See what amicable numbers are and how to find them
Find out what a perfect number is and how to find it. Use a calculator on this lesson to generate perfect numbers
Find supply and demand and equilibrium point in economics
Learn to estimate the square root fast with an easy math technique
What is experimental probability? Teach me so I understand it fast and clearly
A great variety of interesting math problems that will make you love math
This greatest possible error calculator will find the biggest error in a measurement
There absolute value word problems will teach how the absolute value can be used in the real world
An eighth grade test that can easily be printed. This test is designed to test most important skills taught in eighth grade.
A tenth grade test that can easily be printed. This test is designed to test most important skills taught in tenth grade.
What is vertical angles theorem? Explanations and proof on this site
A comprehensive 10th grade math test that is readily avalaible to print for free. The test will measure every important skill taught in commom core geometry
What is pascal's triangle? See the pattern easily with a calculator
An online age calculator to find your age to the nearest second
How many cakes can be produced ? See how to solve it with a system of linear equations
Review math for nurses here and get ready to pass the nclex
A certain value of money will be distributed among 24 students. If 6 students don't come each child will receive 300 dollars more money. Find the amount
Ricky, Carl and Jerome have a total of n candies. Ricky ate 1/4 of the candies. Carl ate 1/3 of the remaining candies. Jerome ate 1/5 of the remaining
An Italian sausage is 8 inches long. How many pieces of sausage can be cut from the 8-inch piece of sausage if each piece is to be two-thirds of an inch
Divide me by 10 and 3 remains. A square number my first digit to be. My second digit is the product of 1 and 3. All together I'm greater than 50.
Andrew had $93.00. With this money, he could buy 3 CDs and 4 books. However, he bought only 2 CDs and 3 books and had $27.00 left. What was the cost
Sergio had 8 colored pencils. He bought 3 more boxes of colored pencils. Sergio now has 35 colored pencils. If each box had the same number of pencil,
The sum of Mira and Shaheena is 40 years. After 10 years Mia will be twice as old as Shaheena. What is Mia's age. What is Shaheena's age? Solution
Mrs. william is deciding between two field tips for her class. the science center charges $135 plus $3 per student. the dino discovery museum simply charges