Equations practice problems - page 38 of 248
Number of problems found: 4950
- Number percentage reduction
If we reduce the unknown number by 24%, we get the number 358. Determine the unknown number. - Isosceles triangle angles
Determine the size of the interior angles in an isosceles triangle if you know that the angle opposite the base is 15° greater than the angles at the base. - Basket of apricots
Mom bought a basket of apricots for her three children with a note to share them fairly. In the morning, Jitka fairly took 1/3 from the basket, at noon Martin came and also took 1/3. Pavla came to the basket last, followed mom's instructions, and took 4 a - Father son age
The father is five times older than the son. The father will be twice as old as the son in fifteen years. How old is Dad now? - Line parametric equation
Convert the parametric expression of the straight line to a general equation. x=3-5t y=-4+10t - Scalar products
The vectors a = (3, -2), b = (-1, 5) are given. Determine the vector c for which a. c = 17; b . c = 3 - Number addition multiplication
If I add 5 to this number, I get the same result as multiplying it by 5. What is that number? - Resort nationality distribution
In the popular Italian resort of Caorle, there are only 4 nationalities. The resort has 3/20 Germans, 2/5 Czechs, 1/4 Austrians, and 500 Brits. How many tourists are there in total at the resort? - Machine depreciation years
8% of the price of the machine is written off every year. In how many years will the price drop from 250,000 to 150,000? - Bacteria hourly increase
What % of bacteria will increase hourly if the number increases from 100,000 to 370,000 in 5 hours? - Geometric sequence sum
Determine s5 of the geometric sequence if: a1 + a2 = 10 and a4 - a2 = 120 - Position of digits Find a number with six digits. If you put the last digit before the first, you get a new number that is five times larger. The digits between must not change their position.
- Deposit double years
The bank offers interest on the deposit of 4 percent per annum. In how many years will the deposit double? - Passenger train
At 9:15 AM, a passenger train passes a station at a speed of 75 km/h. At 10:00 AM, an express train passes through the same station in the same direction at a speed of 120 km/h. Both trains arrive at the same destination station at the same time. a) At wh - Team time percentage
All three team members took turns fulfilling the competition task without delay. The first member used up 30% of the total competition time. The second needed 10 minutes more than the first, and only 10 minutes remained for the third. What % of the total - Mobile price increase
The mobile was increased by a quarter of the original price and then again by a quarter of the new price. How much did the mobile cost if its final price was 125 euros? - Worker reward division
The reward of CZK 4,220 was divided among 3 workers in such a way that the second received CZK 400 more than the first, and the third received 30% more than the second. How much did each get? - Equation of a circle
Write the general equation of a circle with center S(2;5) and point B(5;6) lying on this circle. - Karel Ondra pursuit
Carl went for a walk at a speed of 5 km/h. After 3 hours, Andrew rode after him with an important message at a speed of 20 km/h. How many minutes did it take Andrew to catch up with Carl? - Unknown number calculation
I divide the unknown number by 2 and then add 4 to the result, which gives me 22. What is the unknown number?
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