Answer :
Final answer:
The total length of magnesium ribbon required for 215 students, each needing 8.75 cm, is 1878.75 cm.
Explanation:
For this question, we need to multiply the amount of ribbon required for each student by the total number of students. So, we take the length of magnesium ribbon required by one student - 8.75 cm and multiply it by the number of students - 215. Therefore, the total length of magnesium ribbon required is 8.75 cm x 215 = 1878.75 cm. Hence, a total of 1878.75 cm of magnesium ribbon is required for 215 students to perform the experiment.
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