System of equations - math word problems - page 70 of 110
Number of problems found: 2182
- Father and son
When I was 11, my father was 35 years old. Today, my father has three times more years than me. How old is she? - Towels Price Quantity
We bought towels for CZK 432. If there were six more towels for the same money, everyone would be 66 CZK cheaper. How many towels were there? - Siblings Ages Puzzle
Susan, Karin and Sam are siblings. Susan is 9 times as old as Sam. Karin is nine years younger than Susan. How old is each of them if they are all under the age of 20? - Excavation by gentlemen
The site manager, based on the length of the excavation, estimated that the whole excavation for laying a plastic pipe bringing water to the kindergarten building could be carried out by Mr. Demeter together with Mr. Vondrák in 1.2 shifts. From experience - Age puzzle
Petko and Lenka are two years older than Jana. Jana is eight years old. Petko is two years older than Lenka. How old is Lenka? How old is Petko? - Individual
On a hill behind Terchová, there is a sheepfold where a shepherd lives. He divided his two hundred sheep into 4 groups in a mysterious way: If he had 4 more sheep in the first group, 4 fewer in the second, 4 times more in the third, and 4 times fewer in t - Tourist Walk and Bus
The tourist traveled 78 km in three hours. For part of the journey, he traveled by bus at an average speed of 30 km/h, and for the rest, he walked at an average speed of 6 km/h. How long did he walk, and how many kilometers did he walk? - Apple price calculation
When you buy 3 kg of apples and 2 kg of oranges, we will pay € 12. When you buy 2 kg of apples and 4 kg of oranges, we pay € 16. How much does 1 kg of apples cost? - Spiders and Beetles Legs
The boy establishes collections of spiders and beetles. So far, he has only a total of 8. When asked how many beetles he has, he replied: "My entire collection has 54 legs. "How many spiders and how many beetles? - Eva and Eva and Jana have a total of 560 CZK. Eva has a third more than Jana. How much CZK does each have?
- The train
The train passed the observer in the 20 s and passed through a 1500 m tunnel in 2 minutes. Calculate the speed (km/h) and train length. - Inscribed circle
Calculate the magnitude of the BAC angle in triangle ABC if it is three times less than the angle BOC, where O is the center of the circle inscribed in triangle ABC. - Geometric Sequence Terms Quotient
A2 + a3 = -6 a1 + a2 + a3 + a4 = 20 Geometric sequence q, a1? - The parallelogram
The perimeter of the parallelogram is 79.5 m, and its shorter side is half the longer side. What is the length of each side of the parallelogram? - Vacation tour price Boris and Brandon were on vacation by the sea with their parents. The stay cost the whole family 2170 euros. The trip price for a child was 115 euros lower than an adult's. Both boys took advantage of this discount this year. What was the price of the tou
- Running Track Length
Mike and Rick ran back and forth on the running track. They started towards each other, each from a different end of the track. Both were still running at the same speed, each at a different speed. The first time, they met 800 m from one end of the track, - Michaell Erika savings
Michaell and Erika saved € 30. Erika saved five times more than Michaell. How much did Erika save? - Arithmetic sequence calculation Calculate the value of the first term and the difference in the arithmetic sequence a1 + a7 = 42 a10-a3 = 21
- Necklace cost
For the opening ball of the season, the president's wife bought a necklace with a bracelet for 768 euros. How much did the necklace cost, and how much did the bracelet cost if the bracelet was 40% off a) cheaper, b) more expensive than the necklace? - Triangle Angles Type
In a triangle, the first angle is half the second angle, and the third angle is the third of the first angle. How big are the angles in a triangle, and what is the type of triangle?
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