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Scale both quantities consistently - Online practice 1

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

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Rectangle: 4 cm by 7 cm, enlarge lengths by scale factor 3. Separate paper recipe model: 300 g of one ingredient makes 12 equal portions; assume every amount scales proportionally. Find the amount for 20 portions. This is calculation, not a cooking task.

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