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Solving a System of Equations with Two Unknowns
Distance = Rate x Time Problems
Mixture Problems
Blinders
Solving a System of Equations with Three Unknowns
  MIXTURE PROBLEMS
Then, add the (20 – x) to the equation.

• 30% (x) + 45% (20 – x) = 40% (20)

Now, convert the percentages to decimals.

• 0.30 (x) + 0.45 (20 – x) = 0.40(20)
Equations for mixture problem
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