Addition + expression of a variable from the formula - practice problems - last page
Number of problems found: 79
- Bonuses
Five company employees were paid bonuses, so each successor received 550 USD less than the previous employee. How much did everyone get if a total of USD 11,000 has paid? - Calculate 8259
Calculate the sum of all 4-digit odd natural numbers. - Smaller 7840
Which number is 2a-b smaller than a + 2b? - 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.
- Which
Which decimals, when subtracted, equal 3.89: a - b = 3.89 - Yellows 7650
Stano got a box of dice. Half of them were brown and blue in color, and the others were red, yellow, and green. There were 12 more reds than yellows, 19 more reds, and 5 more greens than yellows. How many cubes were in the box? - Infinite sum of areas
An equilateral triangle A1B1C1 is constructed above the height of the equilateral triangle ABC is constructed as. Above the height of the equilateral triangle A1B1C1 is built triangle A2B2C2, and so on. The procedure is repeated continuously. What is the - Medicinal 7027
There were x boys and y girls in the class. The boys handed over a kg of dried medicinal herbs, and the girls 3 kg more. How many dried herbs did they pass down? - Subsequent 6477
We will put 900 bags in 9 rows so that there are five fewer in each subsequent one. How much is in the first place?
- Cuboid
The sum of the lengths of the three edges of the cuboid that originate from one vertex is 210 cm. The edge length ratio is 7: 5: 3. Calculate the length of the edges. - Calculate 5274
Calculate the second sum if you know that one sum is -124.6 and the resulting sum is (-200). - Twenty-first 3935
Determine the twenty-first term and the difference AP if a1 = 0.12 and a1 + a2 = 0.42. - Raspberries
Dano had 20 raspberries. John had 90% more raspberries than Dano. Find how many raspberries have Dano and Juraj together. - Chocholate pyramid
How many chocolates are on the third shelf when on the 8th shelf are 41 chocolates on any other shelf? Are seven chocolates more than the previous shelf?
- 1600 3263
a1 = 1 s40 = 1600 a40 =? - Including 2753
Martina helped the coach write diplomas. It took her 3 minutes to write her first diploma and her next 2 minutes. How many minutes will it take her to write n = @ n diplomas / including the first / if she works at this pace? - Difference AP
Calculate the difference of arithmetic progression if the sum of its first 19 members Sn = 8075 and the first member is a1 = 20 - Theater
The theater has each row with 15 seats. The ticket to the first 7 rows is for 26 EUR. The next row is for 13 EUR. The theater was completely sold out. Revenue was 5850 EUR. How many rows are in the theater? - Angles
The triangle is one outer angle 158°54' and one internal angle 148°. Calculate the other interior angles of a triangle.
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Addition practice problems. Expression of a variable from the formula - practice problems.