System of equations - math word problems
Number of problems found: 769
- Linear system
Solve this linear system (two linear equations with two unknowns): x+y =36 19x+22y=720
- Simple equations
Solve system of equations: 5x+3y=5 5x+7y=25
Solve following system of equations: 6(x+7)+4(y-5)=12 2(x+y)-3(-2x+4y)=-44
- Three unknowns
Solve the system of linear equations with three unknowns: A + B + C = 14 B - A - C = 4 2A - B + C = 0
- Equations - simple
Solve system of linear equations: x-2y=6 3x+2y=4
- Two equations
Solve equations (use adding and subtracting of linear equations): -4x+11y=5 6x-11y=-5
- Non linear eqs
Solve the system of non-linear equations: 3x2-3x-y=-2 -6x2-x-y=-7
solve equations by substitution: x+y= 11 y=5x-25
- Linear system
Solve a set of two equations of two unknowns: 1.5x+1.2y=0.6 0.8x-0.2y=2
Solve two equations with two unknowns: 400x+120y=147.2 350x+200y=144
- A candle
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
Solve system of linear equations by elimination method: 5/2x + 3/5y= 4/15 1/2x + 2/5y= 2/15
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
Find the equations of circles that pass through points A (-2; 4) and B (0; 2) and touch the x-axis.
- Null points
Calculate the roots of the equation: ?
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
- AP - basics
Determine first member and differentiate of the the following sequence: a3-a5=24 a4-2a5=61
- Geometric sequence 5
About members of geometric sequence we know: ? ? Calculate a1 (first member) and q (common ratio or q-coefficient)
- Two numbers
Find two numbers whose difference and ratio is 2.
- Find d 2
Find d in an A. P. whose 5th term is 18 and 39th term is 120.
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