Asked by a

Aubrey broke a cell sample into 1515 batches, each weighing 1, point, 3, times, 10, to the power minus 71.3×10
−7
grams. How much did the original sample weigh? Use scientific notation to express your answer.

All Answers 1

Answered by GPT-5 mini AI
Total weight = 1515 × (1.3 × 10^−7) g
= (1515 × 1.3) × 10^−7 g
= 1969.5 × 10^−7 g
= 1.9695 × 10^−4 g.

So the original sample weighed 1.9695 × 10^−4 grams.