Theater

The theater has in each row with 19 seats. Ticket to the first 10 rows is for 30 USD. In next rows is for 15 USD. The theater was completely sold out. Revenue was 12255 USD.

How many rows are in the theater?

Result

n =  33

Solution:

Solution in text n =

19*10*30 + 19*(n-10)*15 = 12255

285n = 9405

n = 33

Calculated by our simple equation calculator.







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

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




Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

Next similar examples:

  1. Find the 6
    pc_smile_1 Find the total cost of 10 computers at $ 2100 each and 7 boxes of diskettes at $12 each
  2. Find x
    eq222_23 Solve: if 2(x-1)=14, then x= (solve an equation with one unknown)
  3. School trip
    train 6.A class went on a trip. Train ticket cost 6 euros, cable car ticket 6 euro. How many euros must pay classroom teacher for 23 students?
  4. Equation 29
    eq222_18 Solve next equation: 2 ( 2x + 3 ) = 8 ( 1 - x) -5 ( x -2 )
  5. Math classification
    prezident In 3A class are 27 students. One-third got a B in math and the rest got A. How many students received a B in math?
  6. Doctors
    cvach1 In the city operates 171 doctors. The city has 128934 citizens. How many citizens are per one doctor?
  7. Euros
    eura_8 Peter spent a quarter of his pocket saving. He has 9 euros now in his wallet . How many euros spent?
  8. Money 6
    penize_41 Lita had some money. She spent 1/2 of it on a hand bag and 1/3 of the remainder of the blouse. She had 260.00. How much money did she have at start?
  9. Roman numerals 2-
    rome-italy_2 Subtract up the number writtens in Roman numerals. Write the results as a roman numbers.
  10. Negative in equation
    eq1_7 2x + 3 + 7x = – 24, what is the value of x?
  11. Simple equation
    axes_1 Solve for x: 3(x + 2) = x - 18
  12. Product
    complex-colors Result of the product of the numbers 1, 2, 3, 1, 2, 0 is:
  13. Alley
    stromy_6 Alley measured a meters. At the beginning and end are planted poplar. How many we must plant poplars to get the distance between the poplars 15 meters?
  14. The result
    dice_2 How many times I decrease the number 1144 to get the result 22?
  15. Products
    vyroba05_1 15 products are 48 € more expensive than 12 products. How many euros will it cost five same products?
  16. Soda
    soda_water A pack of 12 sodas cost 5.04. What is the unit rate in dollars per soda?
  17. Decimal expansion
    books Calculate: 2 . 1 + 0 . 10 + 7 . 10000 + 4 . 1000 + 6 . 100 + 0 . 100000 =