Find the
Find the number x, which if it increases by 2, then its square increases by 21 percent.
Correct answer:

Tips for related online calculators
Are you looking for help with calculating roots of a quadratic equation?
Our percentage calculator will help you quickly calculate various typical tasks with percentages.
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Our percentage calculator will help you quickly calculate various typical tasks with percentages.
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
You need to know the following knowledge to solve this word math problem:
Related math problems and questions:
- Square sides
If the square side increases by 28%, the square circumference increases by 11.2 meters. Find the length of the original square side.
- Square
If we increase one side of the square by its one-half, then the square perimeter increases by 10 cm. What is the side of the square?
- Secret number
Find the secret number n, which reversed decreases by 16.4 if the number increases by 16.4.
- One-fifth 80438
By what percent does the area of a square increase if its perimeter increases by one-fifth?
- One-fourth 3820
Darius said to Miloš: I think a number. If I square it to one-fourth and then multiply it by 3, I get its square root. Find the unknown number that is greater than zero and belongs to the set of positive integers.
- Dimensions 81100
The area of the rectangle is 81.25 cm². If we increase its length by 5 mm, its area increases by 4%. Determine its dimensions.
- Square - increased perimeter
How many times is the increased perimeter of the square, where its sides, increased by 150%? If the perimeter of the square increases twice, how much % increases the area of the square?
- Increases 14471
How many percent will it increase a) surface b) cube volume if the edge of the cube increases by 25%?
- Original price
Find the original price of a car if it was firstly increased by 4% and then reduced by 2%. It now costs CZK 326,144.
- Passenger 18
Passenger and freight trains are operated between stations I and II, where the distance between stations is 16 km. The speed of the passenger trains is 100km/h, and the speed of the freight trains is 60km/h for a single-line railway track. The waiting tim
- Discounting 3762
The price of the jacket was x €. The coat was first discounted by 12% and then increased in price by 4% of the discounted amount. After discounting and subsequent price increases, the jacket cost exactly 91 euros and 52 cents. Find the flood price of the
- A number 4
A number is made up of two digits. The sum of the digits is 11. if the digits are interchanged, the original number increases by 9. Find the original number
- Increase 3952
I think the number if I increase it by four, then reduce it by 7, add nine and take 50, I get the number zero. Which number do I think?
- Truck
The truck went for 4 hours and 51 minutes. If the truck increases its speed by 23 km/h, it will go the same distance in 2 hours. Calculate this distance.
- Combinations
If the number of elements increases by 3, it increases the number of combinations of the second class of these elements five times. How many are the elements?
- Increases 37921
Increases number of 250 by 11%
- Originally 3289
The pullover originally cost 45 euros. First, it fell by 20% and then by 10%. What is its current price?