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Brianna broke a cell sample into 12 batches, each weighing 8.7 x 10-5grams. Howmuch did the original sample weigh? Use scientific notation to express your answer.

Respuesta :

Since each batch has a weight of 8.7 * 10^-5, let's multiply this value by 12 to find the weight of the complete cell sample:

[tex]12\cdot8.7\cdot10^{-5}=104.4\cdot10^{-5}=1.044\cdot10^{-3}^{}[/tex]

So the original sample weighs 1.044 * 10^-3 grams.