Equations practice problems - page 139 of 241
Number of problems found: 4813
- Powers 3
2 to the power of n divided by 4 to the power of -3 equals 4. What is the value of n? - Acceleration of a train
The train passes 700 m, braking with an acceleration of -0.15 m/s². How long does it break, and what is the final speed of the train if the initial was 55 km/h? - Drying herbs
Herbs lose 75% of weight by drying. How many fresh herbs do you have to collect if you want to make 1.5 kg of dried herbs? - Distance problem 2
A=(x,2x) B=(2x,1) Distance AB=√2, find the value of x - Distance problem
A=(x, x) B=(1,4) Distance AB=√5, find x; - Equation 20
In the given equation: 8/9-4/5=2/9+x, find x - Microorganisms
The first generation of microorganisms has a population of 13500 members. Each subsequent generation is 11/10 times the previous one. Find out how many generations will reach at least three times members of the first generation. - Clubhouse
There were only chairs and tables in the clubhouse. Each chair had four legs, and the table was triple. Scouts came to the clubhouse. Everyone sat on their chair, two chairs were left unoccupied, and the number of legs in the room was 101. How many chairs - Age
In 1960, my age was equal to the digits sum of the year of my birth. What is my age now? - Two bodies 2
Two bodies start moving simultaneously from the same place in the same direction. The first body moves uniformly accelerated with an initial velocity of 4 m/s with an acceleration of 0.5 m/s², the second body moves uniformly decelerated with an initial ve - Watching TV
One evening, 2/3 of the students watched TV. Of those students, 3/8 watched a reality show. Of the students who watched the show, 1/4 recorded it. What fraction of the students watched and recorded reality TV? - Watering 7078
A full watering can weigh 27kg. When half full, it weighs 15 kg. How much can an empty watering weigh? - Two cars 6
Two cars leave the same place one after the other 15 seconds apart. Both are moving with uniform acceleration and zero initial velocity, the first car with an acceleration of 0.5 m/s², and the second car with an acceleration of 2 m/s². Determine a) the ti - Two bricks
One brick weighs 1kg and half a brick. How many kilograms weigh two bricks? - Increased 7062
I think the number. I will increase it by 6, then decrease the increased number by 12, and then multiply the result by the number -2. I divide the product by the number -8 and get the number -4. What number do I think? - Equation: 7057
Solve the equation: (x + 6) -12x (-2): (-8) = - 4 - Two numbers 7
The sum of two consecutive even numbers is 30. Find the numbers. - AP RT triangle
The length of the sides of a right triangle forms an arithmetic progression, and the longer leg is 24 cm long. What are the perimeter and area? - Father and son
Father and son weigh together 108kg. The father weighs 2.6 times more than his son. How much does the weight of my father and son count? - Five pupils
Five pupils clean 30 chairs one hour before four pupils. How many chairs clean one pupil in 1 hour?
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