Equations practice problems - page 127 of 236
Number of problems found: 4717
- Divisors 7779
Two numbers are guessing. The second number is five times greater than the first number, and the square of the first number is equal to 3/5 of the second number. Find the sum of the two numbers and all its divisors. - Mathematics 7775
A total of 3389 digits were needed to number all the sheets of the mathematics textbook. Assume that in a book, every leaf outside the plates is numbered. How many pages does this textbook have if it is: a) single-volume b) two-volume (with both parts hav - Rectangular triangle
The lengths of the rectangular triangle sides with a longer leg of 12 cm form an arithmetic sequence. What is the area of the triangle? - Rectangle 7768
The base of a cuboid is a rectangle. The ratio of its length to width is 3:2. The length of the rectangle of the base is in the ratio of 4:5 to the height of the block. The sum of the lengths of all the edges of the block is 2.8m. Find: a) the surface of - Which
Which decimals, when subtracted, equal 3.89: a - b = 3.89 - Grandmother
Mom walked out to visit her grandmother in a neighboring village 5km away and moved at a speed of 4km/h. An hour later, father drove down the same road at an average speed of 64km/h. 1) How long will it take to catch Mom? 2) What is the approximate distan - Together 7735
The two typists wrote a total of 65 pages; although the former wrote an hour longer than the latter, she wrote 5 pp. Less; the second write 2 more pages per hour than the first. How many pages will they both write together?
- Calculated 7733
There are nurses and horses in the stable. Juraj calculated that they have 11 heads and 36 all legs. How many people are in the stable? - Years 7729
Five years ago, Adam was seven times more than Peter and ten years more than Peter. How old is Adam older than Peter? - Two cyclists 2
At the same time, two cyclists left towns A and B at constant speeds. The first one goes from town A to town B, and the second one from town B to town A. At one point during the trip, they met. After they met, the first cyclist arrived at town B in 36min, - Sum of four numbers
The sum of four consecutive natural numbers is 114. Find them. - Eight years ago
The son asks his father how old he is. My father said: I will have twice as much as I had eight years ago in ten years. - Minutes 7720
Miloš goes to school on roller skates at a speed of 18 km/h. The journey takes 15 minutes. What speed does he have to go if he wants to be at school 5 minutes earlier? - Two thirds
Two-thirds of the unknown number is 8/7. What is 7/3 of this number? - The rod
The rod has a length of 90cm. Half is painted blue, the third is red, and the rest is yellow. How long is the yellow part of the rod?
- Sales off
The price has decreased by 20%. How many percents do I have to raise the new price to be the same as before the cut? - Larger 7710 Seven times is 105 larger than their four times. What's the number?
- Construction 7709
Two construction companies are working on the landscaping. The first would do the whole job in 12 days, the second in 20 days. How long will they work together if the first start working when the second has already worked 4 days? - One-third 7708
One-third of the pupils go to school by bus. The other half take a tram, and the remaining ten pupils walk. How many students are in the class? - Destination 7703
The glider took off from the airport at 10:00 a.m. and flew to the designated destination 102 km away at a speed of 80 km/h. Half an hour later, a motorplane took off behind him at a speed of 180 km/h. When does the motor plane catch up with the glider, a
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