Textbooks

After check of textbooks found that every 10-th textbook should be withdrawn. Together 58 textbooks were withdrawn.

How many textbooks were in stock before withdrawn and how many after withdrawn?

Result

before:  580
after:  522

Solution:

n1/10=58 n1=1058=580n_1 / 10 = 58 \ \\ n_1 = 10 \cdot 58 = 580
n2=n158=522n_2 = n_1 - 58 = 522



Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!





Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




Tips to related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

Following knowledge from mathematics are needed to solve this word math problem:

Next similar math problems:

  1. I think
    numbers_49 I think a number. When I multiply it by five, and after that I subtract 477, I get the same number as if I multiplied it twice. What number do I think?
  2. Postal stamps
    stamps Jano and Peter exchanged postal stamps. Jano gave Peter 32 stamps of the missile for 8 stamps with turtles. How good was Jano after this exchange (how many he has surplus in exchanged stamps)?
  3. Unknown number xyz
    numbs_1 Find the number that its triple is 24. Solve by equation.
  4. Book
    books_6 Jitka read on holidays book that has 180 pages. In the first week read 45 pages. In the second week she read 15 pages more than the first week. How many pages left to read it yet?
  5. Multiples
    numbers2_7 Find all multiples of 10 that are larger than 136 and smaller than 214.
  6. Roman numerals
    roman_1 Write numbers written in Roman numerals as decimal.
  7. Number
    numbers_10 Which number is 17 times larger than the number 6?
  8. What is missing (1000)
    red_minus What number is to add to get 1000?
  9. Euro
    1euro I have 1 euro. How much will I have when you spend it on?
  10. Written number
    numbers2_49 Place+values x ten thousands =30 thousands
  11. Expression
    numbers If A=2 B=3 evaluate expression A(B+A) and multiply it by A
  12. Baking
    buchty_3 There are 28 bunches, and son ate 1/2, dad ate four bunches. How many of them remain on the baking dishes?
  13. Hotel
    postielka The rooms in the mountain hotel are double and triple. Double rooms are 25 and triple are 17 more. How many rooms are there in this hotel?
  14. Number unknown
    plusminus_3 Adela thought the two-digit number, she added it to its ten times and got 407. What number does she think?
  15. Product
    complex-colors Result of the product of the numbers 1, 2, 3, 1, 2, 0 is:
  16. How manz
    children By how many is the product of the numbers 328 and 7 greater than its sum?
  17. Computer
    chars A line of print on a computer contains 64 characters (letters, spacers or other chars). Find how many characters there are in 7 lines.