Examples of equations for practice for 12 year olds - page 37 of 59
Number of problems found: 1180
- Collected 4815
Pupils collected a total of 42 kg of apples. Peter harvests half as much as Zuzka and Martin, a third less than Petr. How much did each of them harvest? - Equations 4781
Determine the smaller root of the root pair of the system of equations. 5a + 4b = 11 3a - 2b = 11 - Content 4774
There is 50 mg of Dolsin in 1 ampoule with a content of 1 ml. The patient should receive 70mg. How many ml will I draw from the second ampoule into the syringe? - Strawberry 4769
They sold 4/7 strawberry ice cream and 36 servings of vanilla ice cream in the store. How many servings of ice cream did they sell that day?
- Calculated 4765
The volume of the cylinder is calculated as V = 1/4 pi times d on the type times v. Express the average d using the volume V and the height in the cylinder. Calculate d for V = 1000 l and v = 23dm - Have solution
The sum of four consecutive even numbers is 92. Determine these numbers. - Simultaneously 4746
One painter paints the school in 7 days, the other in 6 days. The school had to be painted in 2 days. A third painter was called in, and they all worked simultaneously. In how many days would this third painter paint the school by himself? - Construction 4727
Honza's kit included 19 wheels. He used them all to construct tricycles and scooters. How many complete scooters and tricycles did he build? He will find all the solutions. - Rhombus sides
If you decrease the side of the rhombus by 30 mm, its circumference will be 70.8 mm. How long was the side of the original rhombus?
- Rhombus If we increase the rhombus side by 2.4 cm, its perimeter is 20 cm. How long was the side of the rhombus?
- Circumference 4712 If you enlarge the side of the diamond by 4 cm, its circumference will be 20 cm. How long was the side of the original diamond?
- Influenza 4707
There were 36 new cases of influenza at the school during the study week, which was 40 percent less than in the previous week. How many new flu cases have been reported in the last week? - Manufacturer 4686
The phone has a variety of ringtones. 1/3 are loaded from the manufacturer. 2/5 ringtones are melodies. Composed by the user in special programs and the remaining 12 ringtones are digital recordings. How many ringtones are there in total on the phone? - Protrudes 4674
The pole's base is 1/3 to the bottom of the pond, 1/4 is submerged, and one meter protrudes above the surface. How long does the stake have to be cut?
- Mixture 4673
We add 4 kg of tea to 2 kilograms of tea for 15 €, and we get the mixture for 12 €. How much is kg of second tea? - Young Cyclists
Charlie and Peter will attend the Young Cyclists Meeting today. Peter is still unable to start, so Charlie goes first alone. Peter follows him for 20 minutes. How long does it take to reach Charlie? Charlie travels at an average speed of 15km/h, and Peter - Cleaning windows
The cleaning company has to wash all the school windows. On the first day, one-sixth of the windows are washed. The next day, three more windows are washed than the first day, and the remaining 18 windows are washed on the third day. Calculate how many wi - Smaller 4657
Two supply pipes open into the pool, and the smaller pipe fills the pool in 40 hours. The empty pool will be filled in 16 hours if we open both supply pipes. How long would it take to fill if only the second, larger inlet pipe was opened? - Determine 4649 Determine five solutions to the equation of two unknowns. Write as arranged pairs and draw in the graph. What does a diagram of a linear equation look like? 2x + 3y = 7
Eight seamstresses have to complete the order in 16 days. After four days, the two seamstresses switched to another job. In how many days will the order be fulfilled?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
