A multiplication table. In the row labeled 3, the numbers 3, 6, 9, 12, 15, 18, 21, 23, and 27 are highlighted. In the row labeled 9, the numbers 9, 18, 27, 36, 45, 54, 63, 72, and 81 are highlighted.
What was Marcel’s error?
Marcel did not look at the correct rows in highlighted columns.
Marcel did not choose numbers from the highlighted columns.
Marcel did not put the first and second terms in the same order.
Marcel did not use numbers from the same row to create each ratio.
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Marcel's error is: Marcel did not use numbers from the same row to create each ratio.
To determine if two ratios are equivalent, the numbers in each ratio should be derived from the same context. In this case, both parts of the ratio 72:24 should come from the same multiplication table context, such as the same rows of the multiplication table highlighted. However, it seems Marcel incorrectly used numbers from different rows to form the ratios.
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