Equations practice problems - page 216 of 251
Number of problems found: 5001
- Time for the Third Pump
A factory used two pumps to empty a tank. The first pump can empty the tank in 50 minutes, the second in 30 minutes. Both pumps were started simultaneously, but to empty the tank as quickly as possible, a third pump was also started after ten minutes. All - Cyclists meeting
Two cyclists will set off simultaneously from one place on the circular cycling track. How long before they meet? Do you know that Charles will drive in 6 minutes and Laco in 10 minutes? - Farmland
Farmers seeded maize to 45 ha, which is 15% of their total farmland. How many hectares of fields do they have? - Unknown number 24
I think the number: a) It is equal to the area of a square with a perimeter of 12. What is this number? b) Its half is seven times bigger than its quarter. What is this number? - Equation - animals
There are a total of 35 hens and rabbits in the yard. They have a total of 94 feet. Calculate (by equation) how many hens there are in the yard and how many rabbits. - Three simple equations xzy
X-2y + 2z = -1 2x + y-z = 3 3x + 2y + z = 2 - Soldier distribution
Juraj, Milan, and Adrian have a total of 93 soldiers. Juraj has three more soldiers than Milan. Adrian has 15 more soldiers than Milan. Determine how much each one has. - Original price
By using it, the machine's price fell by 37% to 104,454 euros. What was its original price? - Veal weight
The weight of the veal obtained is 64% of the total weight of live calves. What was the weight of the live calves, from which 16,830 kg of veal were obtained? - Bookbindings plan
The bookstore processed 2,905 bookbindings, thus exceeding the set plan by 4.12%. How many should it process according to the plan? - Machines 2
Two machines produce 2,000 products in 50 hours. How many machines do you need to buy to make 15,000 products in 30 hours? - Task calculation
The student has written such a straightforward task in the book: Hanka by three more Emka 2x more Johanna? total 51 Can you help him calculate this fine example? - Workers 2
The worker dug the trench for 7 hours, and another worker for 10 hours. They recruited to work even one worker. Digging should be done for 2 hours. For how long would dig the third worker alone? - Trapezoid angles
Trapezoid with sides a = 10, b = 20, c = 25, d = 15. Calculate all internal angles. - Lcd3
What is LCD of the equation of x/2 + 1/3=5/2? And what is x? - Two looms
On two looms of different performances, the desired amount of fabric can be woven in 6 hours when both are working simultaneously. On the first machine, this amount of fabric would be woven in 10 hours. How long would it take to weave on the second machin - The city 3
The city has 22,000 residents. How long is it expected to have 25,000 residents if the average annual population growth is 1.4%? - Weights
Marry and John together, weighing 49 kg. Their weights are in a ratio of 1:6. Determine their weights. - Tangerine distribution
Michael, Tono, Marek, and Julia have 48 mandarins. Michael has 12 tangerines more than Tono, and Julia has eight tangerines less than Marek. Determine how much each has. - Points on circle
In a Cartesian coordinate system with origin O, a circle k is drawn with centre O and radius r = 2 cm. Write all points on circle k whose coordinates are integers. Write all points on the circle with centre O and radius r = 5 cm whose coordinates are inte
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