Algebra - math problems

Number of problems found: 3462

  • Let A=
    Let A= {1,3,5}, B={2,4,5,6}, U={1,2,3,4,5,6,7} Find: 11. A ∪ B 12. A ∩ B 13. A' 14. (A ∩ B)' 15. B"
  • Sets
    If X = {1, 2, 3, 4, 5 . . .10}, Y = {2, 4, 6,. . . 20} and Z = {x: x is an integer, 15 ≤ x ≤ 25 }. Find (a) X ∩ Y, (b) X ∩ Z, (c) n(X ∪ Y) and (d) n(X ∪ Z)
  • Eq1
    When the product of two less than three times a number and four is subtracted from nine times the number, the result is eight more than five times the number. What is the number?
  • Evaluate 19
    Evaluate expression (-8-b)+6c if b=-5 and c=2
  • Solve 6
    Solve following equations: x + 2y - z = 3 3x + 4y + z = 5 3x - y - z = 5
  • Solve:
    Solve: 2r2+7r-r2-9
  • Simple equation
    Find the value of x in 21-3x=x+1
  • The sum 14
    The sum of five times a number and 10 is equal to the difference of the number and 10.
  • Simple linear equation
    What is the solution of the equation 70 = 1.4y?
  • Evaluate 9
    Evaluate expression: 3 { 4 − 4 ( 5 − 12 ) } + 20
  • Expression with brackets
    Evaluate the expression. 15+[(9-4)×22]
  • Translate
    Translate the following mathematical statement into an algebraic expression or equation. 1. Nine less that the quotient of a number and 3 2. The ratio of 3 and the sum of 4 and an unknown number 3. Eighty is the product of 4 and g 4. The sum of x and 18 i
  • A swimmer-training
    A swimmer-training program has 26 students specializing in the butterfly stroke, 24 specializing in the breaststroke, and 29 specializing in the backstroke. Of these students, 5 students are specializing in all three strokes, 5 are specializing in only th
  • Simplify:
    Simplify: 8(−9 − 5x) + 4b use x = 9 and b = −9
  • Heads and legs
    108 legs and 33 heads how many chickens. How many rabbits are there?
  • Mushrooms
    The mushroom picker had 110 mushrooms in the basket. He had 36 mushrooms less than cossacks. How many mushrooms did he bring if he only had cossacks and mushrooms in the basket?
  • Find the 20
    Find the product and the sum of the roots of x2 + 3x - 9 = 0
  • Subtracting sets
    For two sets K, L is true: K has 30 elements, L has 27 elements and the set L - K has 22 elements. How many elements does the set K - L have?
  • Terms of GP
    What is the 6th term of the GP 9, 81, 729,. .. ?
  • Find the 19
    Find the 1st term of the GP ___, -6, 18, -54.

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