Equations practice problems - page 184 of 250
Number of problems found: 4996
- New bicycle
Mr. Milan bought a new bicycle. The Milan he chose was out of stock, so he had to order it. When ordering, he paid a deposit of 110 euros, which is 40% of the total price. How many euros did Mr. Milan's bike cost? - Largest number n
Find the largest natural number d that has that property for any natural number n; the number V(n) is the value of the expression: V (n) = n ^ 4 + 11n²−12 is divisible by d. - Three colors 2/3
Marek has balls of three colors. Two-thirds of the balls are green, 2/7 are blue, and one ball is yellow. How many balls does Marek have? - Class students
3/4 of the class went skiing. Of those who stayed home, 1/3 fell ill, and the remaining 6 were at a math camp. How many students does the class have? - Polynomial coefficients
Find all triplets P (x) = a * x² + b * x + c with the integer coefficients a, b, and c to which it applies P (1) - Pets in ZOO
The zoo has a run for pets. There are chickens, pigs, and cows. Altogether, there are 20 heads and 60 feet. How many chickens and piglets are there? - Subjects
A student takes 5 minutes to complete a maths problem and 12 minutes to complete a biology problem. One day, he has a combined homework assignment of 11 problems that takes him one and a half hours to complete. How many problems are from each subject? - Alcohol mixing
How much 55% alcohol do we need to add to 2 liters of 80% alcohol to produce 60% alcohol? How much is 60% of alcohol made? - Cheetah speed
The cheetah began to chase the antelope, and there was a distance of 120 m between them. Although the antelope ran at 72 km/h, the cheetah caught up with it in 12 seconds. How fast was the cheetah running? - Missing number
Find the number that replaces the question mark: 1.4:? = - 6 - Triangle arm
There is an isosceles triangle with a circumference of 36 cm, and the height at the base is 12 cm long. Calculate the length of the arm of a given triangle. - Fraction equation
Find the value of x: x-4 / 3x-5 = x + 3 / 10-6x - Concentration - salt solution We added 300 g of water to 400 g of salt solution, reducing the solution's concentration by 5%. How much water did the original solution contain, and what was its concentration?
- If we
If we increase the unknown number by 4%, we get 780. Determine the unknown number. - Material transport
Two trucks were supposed to load the building materials in 10 days. After 6 days of work, the first car broke down, and the second one carried building materials for another 9 days. How many days would the first and second cars take the building materials - Apples 2
Dried apples contain 15% water. Fresh apples contain 80% water. How many kilograms of apples must we buy to get 3 kg of dried apples? - Family
The son is 3/5 smaller than the mother, who is 99 cm higher than the son. Thus, the mother is 3/5 taller than the son. - Car overtaking
The car moved out of place at a speed of 60 km/h in 1.5 hours. The second car moved at a speed of 80 km/h. How long will it take to catch the first car, and how many kilometers will it drive? - Two Gardens
Uncle Ferda had two gardens: the carrot garden was square-shaped, and the strawberry garden was rectangular. The width of the strawberry garden was three times smaller than the width of the carrot garden, and the length of the strawberry garden was 8 metr - Power equation
Solve the power equation: 2.1463 = 0.4179x0.419
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