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We consider mathematics to be a bearer of common sense, without which t isn't straightforward in the next career to achieve success. Whether as a manager, programmer, judge, mason, or electrician, you will make decisions every day, the quality of which will depend on your wisdom, maturity, concentration. The smartest and better decisions you make in life, the greater the potential for success in your personal and working life. We will help you with our portal with examples of mathematics with their solutions. If you are looking for math material, you are getting ready for a prize, a graduate, a monitor, a nationwide knowledge test is also right here. In addition to examples, we also offer online math calculators.
October 2020 - we help students and teachers with materials with examples from mathematics, physics and electro - materials for distance forms of teaching due to the ongoing COVID-19 pandemics.
March-April 2020 - we were hopelessly overwhelmed by math problems from our users (the first lockdowns due to COVID-19) and we managed to solve them all during the summer holidays.
- The rotating
The rotating cone has a height of 0.9 m and the diameter of the base is 7.2 dm. Calculate the surface of the cone. (Hint: use Pythagorean theorem for a side of cone)
- The volume
The volume of the cone is 94.2dm³, the radius of the base is 6 dm Calculate the surface of the cone.
- The volume
The volume of the rotating cone is 376.8cm³, the height of this cone is 1dm. Calculate the diameter of the cone base.
- The father
The father is 3 times older than his son. 10 years ago, a father was 7 times older than his son. How old are father and son?
- Pizza fractions
Ann ate a third of a pizza and then another quater. Total part of pizza eaten by Ann and how much pizza is left?
- The encore
The rock band had a 15-minute encore at their concert, which accounted for 12% of the total length of the concert. What was the total length of the concert?
- The price
The price of the calculator gradually decreased. From 65 euros to 30 euros, then to 10 euros and finally to 4 euros. What percentage were the individual reductions? What percentage of the original price was reduced by a total of?
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