Algebra - math problems

Number of problems found: 3187

  • Algebra
    parabol If x+y=5, find xy (find the product of x and y if x+y = 5)
  • Open intervals
    intervals.svg Open intervals A = (x-2; 2x-1) and B = (3x-4; 4) are given. Find the largest real number for which A ⊂ B applies.
  • Algebra problem
    plusminus This is algebra. Let n represent an unknown number. 1. Eight more than the number n 2. Three times the number n 3. The product of the number n and eight 4. Three less than the number n 5. Three decreased by the number n
  • Double probability
    dices2 The probability of success of the planned action is 60%. What is the probability that we will achieve success at least once if this action is repeated twice?
  • Intersect and conjuction
    venn_intersect Let U={1,2,3,4,5,6} A={1,3,5} B={2,4,6} C={3,6} Find the following. 1. )AUB 2. )A'UB'
  • Alarm systems
    cars What is the probability that at least one alarm system will signal the theft of a motor vehicle when the efficiency of the first system is 90% and of the independent second system 80%?
  • Log
    log if ?, what is b?
  • Gym center
    sale 80% of all visitors to the gym center enjoy a discount. 3/4 of all visitors go to practice regularly. All visitors who go to the gym regularly benefit from a discount. What percentage of all visitors do not go to the gym regularly but still use the discou
  • School trip
    venn_intersect On a school trip, 17 of the 28 children bought ice cream or chocolate in a candy store. Twelve children bought chocolate, and nine children bought ice cream. How many children bought ice cream and chocolate? How many children did not buy ice cream? How ma
  • Simple equation
    axes Solve for x: 3(x + 2) = x - 18
  • Fraction
    polynomial For what x expression ? equals zero?
  • Inflation
    dollar What is better for people (employees)? ?
  • Asymptote
    asymptote What is the vertical asymptote of ?
  • Find next member
    sequence_geo Find x if the numbers from a GP 7, 49, x.
  • Discriminant
    Quadratic_equation_discriminant Determine the discriminant of the equation: ?
  • Diagonals
    diagonals What x-gon has 54 diagonals?
  • Inquality
    compare Solve inequality: 3x + 6 > 14
  • Equatiom
    negativ Solve equation with negatives: X/(-5) + 2 = -9
  • Series and sequences
    seq_sum Find a fraction equivalent to the recurring decimal? 0.435643564356
  • Holidays
    ndr Of the 35 students of the class were 7 on holiday in Germany and just as much in Italy. 5 students visited Austria. In none of these countries was 21 students, all three visited by one student. In Italy and Austria were 2 students and in Austria and Germa

Do you have an interesting mathematical word problem that you can't solve it? Submit a math problem, and we can try to solve it.



We will send a solution to your e-mail address. Solved examples are also published here. Please enter the e-mail correctly and check whether you don't have a full mailbox.

Please do not submit problems from current active competitions such as Mathematical Olympiad, correspondence seminars etc...