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Direct proportion pricing: calculating 2 kg and n-times purchase costs

Direct proportion pricing: calculating 2 kg and n-times purchase costs
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2023-07-20 14:12
In collections Wiederholung: Direkte und Indirekte Proportionalität Direkte Proportionalität
This example demonstrates how to use a constant unit price to solve word problems involving direct proportionality: students compute the cost for 2 kg from a given 1 kg price and determine the required payment factor when buying n times as much. The key mathematics is direct proportionality (price is proportional to quantity), translating text into algebraic relationships, and reasoning with multi

GeoGebra Commands & Parameters

  1. Sequence(Random[2, 9], m, 1, 3) → randomNumberB, {5, 8, 6}
  2. Element({correct1, correct2, correct3}, excount) → correct
  3. Element({sol1, sol2, sol3}, excount) → sol
  4. Textfield(input1) → Eingabefeld1
  5. Element({b1, b2, b3}, excount) → b
  6. If(step ≟ 1, (1.3406, -3.49119), (1.36037, -2.4)) → S
  7. Semicircle(A2, A1) → ka
  8. Semicircle(B1, B2) → kb
  9. Point(Line[G, xAxis]) → H
  10. Point(Line[I, xAxis]) → J
  11. Point(Line[A, xAxis]) → B
  12. Textfield(input2) → Eingabefeld2
  13. Textfield(input3) → Eingabefeld3