Equations practice problems - page 177 of 236
Number of problems found: 4716
- Variation equation
Solve combinatorics equation: V(2, x+8)=72 V(2,x+8) is variations, second class, from x+8 items. - Student's 4287
Dorka had a total of 22 marks in her student book. She had three times less than three ones. She had only two doubles. How many units did Dorka have in the student's book, and how many threes? - Wednesday 4286
During the flu epidemic, 10% of the school's students fell ill on Monday, another 39 on Tuesday, and one-eighth of all the school's students joined them on Wednesday. During these three days, one-third of all school pupils fell ill. How many students does - Circumference 4285
Calculate the circumference of a rhombus, one side of which is 6 cm long, and the height of this side is 2 cm long. The height on the other side is 4 cm long. - Solution 4284
How many grams of table salt and water do we weigh to prepare 500 g of a 15% solution? - Unknown 4281
19% of the unknown number is 12, less than 23% of the same number. Specify an unknown number. - Hello adding
Fill letters instead of digits so the indicated sum (equal letters represent equal digits). What number is hidden under the letter J? A A H A H O A H O J -------------------------- 4 3 2 1
- Equation: 4274
Solve the equation: V (2, x + 2) = 90 - Together 4273
Jan is five years older than Pavel. Jan's age is 7/6 Dusan's age. All the brothers are 195 years old together. How old is Jan? - Rectangle diagonals
It is given a rectangle with an area of 24 cm² and a circumference of 20 cm. The length of one side is 2 cm larger than the length of the second side. Calculate the length of the diagonal. Length and width are yet expressed in natural numbers. - Star equation
Write digits instead of stars so that the sum of the written digits is odd and is true equality: 42 · ∗8 = 2 ∗∗∗ - Remaining 4262
Owl Wesley read the book for three days. On the first day, she read one-fifth of the pages. On the second day, she read half of the remaining and the last 30 pages on the third day. How many pages did the whole book have? - Government 4253
The government had saved a few cents. They added another 60 cents. He missed 90 cents in the school cafeteria. He has 284 cents left in the treasury. How many cents did Vlado save? - MO-Z5-3-66 tiles
The picture shows square tiles with a side of 10 dm, composed of four identical small rectangles and squares. The circumference of a small square is five times smaller than the circumference of the entire tile. Determine the dimensions of the rectangle. - Unfortunate 4243
The unfortunate landowner had 49 ducats more than Jurosik. How many ducats did Jurosik steal from the landowner if he now has five ducats more than the landowner?
- Badminton
On Friday, there was a sports day at school, attended by several students. A third of these students participated in a badminton tournament, a quarter of the remaining number threw a cricket ball, two-thirds of the remaining number competed in running and - Granddaughter 4237
Mrs. Helena has an old cell phone with nothing to do but makes phone calls. The cell phone will discharge in 72 hours when fully charged and on the phone. Three hours of calling in a row are enough to discharge a fully charged phone. After the last full c - Completes 4234
The worker completes the work in 12 days, the second in 10 days. The first worker kicks himself for four days, then the second worker comes. How long will it take to dig? - The bag
Nelly found an interesting point. An empty bag weighs 4 kg less than the full. An empty bag is five times easier than a full. How many kg weigh things in this bag? - Inequalities: 4229
Find the number of all integers x that satisfy the following two inequalities: | x + 2 | = 3
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