Equations practice problems - page 185 of 251
Number of problems found: 5001
- 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 - Body meeting
From two places, M and N, 100 m apart, two bodies move simultaneously in the positive direction of the x-axis. A body moving from place M has a speed of 5 m/s, from place N 3 m/s. How long does it take for the first body to catch up with the second? What - Mushrooms
Fresh mushrooms contain 90% water, dried only 12%. How many kilograms of fresh mushrooms are needed for 5 kg dried? - Coffee blend
From two types of coffee priced at 450 CZK/kg and 730 CZK/kg, 20 kg of a blend priced at 520 CZK/kg is to be prepared. How many kilograms of each type of coffee are needed? - Grams
How many grams of 5% solution do we need to add to 100 g of 50% solution to get a 20% solution? - Square vs rectangle
A square and a rectangle have the same areas. The rectangle's length is nine greater, and the width is six less than the side of the square. Calculate the side of a square. - Classroom
One-eighth of the 9th class was interested in studying at a grammar school, a business academy one-sixth, and a secondary vocational school quarter to SOU third. The remaining three students were interested in the school of art direction. How many student - Plane and helicopter
From two airports, a plane and a helicopter took off at the same time. The helicopter was flying to the airport from which the plane took off, the plane to the airport from which the helicopter took off. When they passed each other, the helicopter had flo - Two trucks Two trucks left cities A and B against each other and met after an hour. The first car came to B 27 minutes later than the second car to A. Calculate the car speed if the distance between cities A and B is 90 km.
- Fraction equation
Calculate x: (x-1) over (x-2) + (x-2) over (x-4) = 4 - Coal consumption
The locomotive consumes 22 kg of coal when climbing per kilometer. It consumes 10 kg when descending or driving on a flat surface per one kilometer. The line is 62 km long, and coal consumption on this line was 800 kg. How many km of the climb was there o - Age puzzle
If we add the age of a man and a woman, we get the sum of 91. He is now twice as much. How old was she when he was as old as she was now? - Car overtaking
From place A, the cyclist drove at a speed of 24 km/h. They sent a car behind him an hour later, traveling at 60 km/h. When and how far from place A will a cyclist travel? - Clothing cost
He bought a T-shirt, a tie, and a shirt. The tie was three times cheaper than the shirt, and the T-shirt was 70 CZK more expensive than the tie. He paid a total of 470 CZK. How much did he pay for a tie, a T-shirt, and a shirt? - Orchard trees
A total of 18 pears and apple trees grow in the orchard. Pears are two times less than apple trees. How many pears and how many apples? - 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? - A goat
In the square garden of side (a), a goat is tied in the middle of one side. Calculate the length of the rope (r) so that the goat grazes exactly half the garden. If r = c * a, find the constant c.
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