Arithmetic - math word problems

  1. Compare
    compare Compare with characters >, <, =: 85.57 ? 80.83
  2. Biquadratic
    bikvadraticka By introducing a new variable solve biquadratic equation: ?
  3. Segments
    abs Which of the pairs of numbers on the number line encloses the longest segment: ?
  4. Family
    stork_bocian What is the probability that a family with 7 childrens have: exactly 5 girls? 7 girls and 0 boys? Consider the birth probability of a girl is 48.69% and boy 51.31%.
  5. Diagonals in the diamond
    kosoctverec_color The length of one diagonal in diamond is 24 cm greater than the length of the second diagonal and diamond area is 50 m2. Determine the sizes of the diagonals.
  6. Leg
    tetris Determine the area of a trapezoid with bases 71 and 42 and height is 4 shorter than the its leg.
  7. Loan
    loan Apply for a $ 59000 loan, the loan repayment period is 8 years, the interest rate 7%. How much should I pay for every month (or every year if paid yearly). Example is for practise geometric progression and/or periodic payment for an annuity.
  8. Funnel
    nalevka The funnel has the shape of an equilateral cone. Calculate the surface wetted with water if we poured into the funnel 7.1 liters of water.
  9. Number
    fractions_1 Calculate the integer number which, divided by 34 gives 10 and the rest 25.
  10. Chord AB
    chord_3 What is the length of the chord AB if its distance from the center S of the circle k(S, 92 cm) is 10 cm?
  11. Chemical parison
    banka_1.JPG The blown parison (with shape of a sphere) have a volume 1.5 liters. What is its surface?
  12. Snowman 2
    snowman_1 On the medal, which has the shape of a circle with a diameter 18 cm is sketched snowman so that the following requirements are met: 1. snowman is composed of three circles, 2. space over snowman is the same as under it, 3. diameters of all circles express
  13. Rhombus problem
    privesok-kosostvorec Perimeter of the rhombus is 204 dm and it area is 2244 dm2. Calculate the height of the rhombus.
  14. Bus
    Autobus At the A bus stop boarded 6 people into the bus and on each other bus stop one man more than the previous one. On E station never boarded. Stops are A, B, C, D, E. Calculate the number of people on the bus after leaving the station E.
  15. Exp
    old_calculator If ?, then n is:
  16. Goniometric form
    complex_fnc Determine goniometric form of a complex number ?.
  17. Three digits number
    plot How many are three-digit integers such that in they no digit repeats?
  18. Temperature calculus
    snowman Calculate percentage of temperature increase if changed from 18°C to 33°C?
  19. Pure quadratic equation
    kvadrat Solve pure quadratic equation ?.
  20. Potatoes
    potatoes Could 446 tons of potatoes (ρ = 771 kg/m³) fits in a warehouse with a volume of 699 m³ ?

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