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1049.2. Reverse proportionality concept.

Check the correct answer!

John lives 2km from school, every day it takes 10 minutes to school. In school he learned reverse proportionality concept, he used it when going home. Is every Johns statement correct?
If i walked 4 times faster, my road time would decrease by 2?
Reverse proportionality
Reverse proportionality concept

Solve tasks to find hidden Geo point coordinates

  1. Physics: Movement characteristics.
  2. Algebra: Square root properties
  3. Algebra: Reverse proportionality concept.
  4. Algebra: Numerical approximation.
  5. Algebra: Complete quadratic equation
  6. Geometry: Pythagorean theorem. Right angled triangle signs.
  7. Chemistry: Acids, bases and salts chemical formulas and names.
  8. Algebra: Absolute and relative mistake of approximation
  9. Algebra: Fraction amplification and abbreviation.
  10. Geometry: Trapeze, elements, trapeze types, trapeze properties, isosceles trapeze signs.