System of equations - math problems

Number of problems found: 821

  • Linear system
    vahy_eq Solve this linear system (two linear equations with two unknowns): x+y =36 19x+22y=720
  • Simple equations
    enc2 Solve system of equations: 5x+3y=5 5x+7y=25
  • Equations
    p1110617 Solve following system of equations: 6(x+7)+4(y-5)=12 2(x+y)-3(-2x+4y)=-44
  • Three unknowns
    matrix Solve the system of linear equations with three unknowns: A + B + C = 14 B - A - C = 4 2A - B + C = 0
  • Equations - simple
    linearna Solve system of linear equations: x-2y=6 3x+2y=4
  • Two equations
    children Solve equations (use adding and subtracting of linear equations): -4x+11y=5 6x-11y=-5
  • Non linear eqs
    q2_non_linear Solve the system of non-linear equations: 3x2-3x-y=-2 -6x2-x-y=-7
  • Substitution
    eq1 solve equations by substitution: x+y= 11 y=5x-25
  • 3 shirts
    klobouk 3 shirts for $35 2 hats and a shirt for $20 which system of equations can be used to find s, the cost of one and h, the cost of one hat?
  • Linear system
    linear_eq Solve a set of two equations of two unknowns: 1.5x+1.2y=0.6 0.8x-0.2y=2
  • Linsys2
    linear_eq Solve two equations with two unknowns: 400x+120y=147.2 350x+200y=144
  • A candle
    candles A candle shop sells scented candles for $16 each and unscented candles for $10 each. The shop sells 28 candles today and makes $400. a. Write a system of linear equations that represents the situation. b. Solve the system to answer the questions: How many
  • Elimination method
    rovnice Solve system of linear equations by elimination method: 5/2x + 3/5y= 4/15 1/2x + 2/5y= 2/15
  • Sweets
    sladkosti 3 chocolate and 7 cakes cost 85, - CZK. 2 chocolates and 6 cakes cost 86, - CZK. How much is 5 chocolates and 9 cakes? I wonder how to get the result, but only by logic without the use of a system of equations
  • Touch x-axis
    touch_circle Find the equations of circles that pass through points A (-2; 4) and B (0; 2) and touch the x-axis.
  • There
    triangle_rt_taznice There is a triangle ABC: A (-2,3), B (4, -1), C (2,5). Determine the general equations of the lines on which they lie: a) AB side, b) height to side c, c) Axis of the AB side, d) median ta to side a
  • Coordinates of the vertices
    troj Calculate the coordinates of the vertices of a triangle if the equations of its sides are 7x-4y-1 = 0 x-2y + 7 = 0 2x + y + 4 = 0
  • AP - basics
    ap Determine first member and differentiate of the the following sequence: a3-a5=24 a4-2a5=61
  • Geometric sequence 5
    sequence About members of geometric sequence we know: ? ? Calculate a1 (first member) and q (common ratio or q-coefficient)
  • Two numbers
    numbers Find two numbers whose difference and ratio is 2.

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