Posted by **cici** on Tuesday, October 22, 2013 at 8:55pm.

A geologist collected a 2.5-kg soil sample for analysis. If she only needs 20 grams of sample to perform the analysis, what percentage of the soil sample will be tested?

Answer: .8%

2.5kg = 2500g

20/2500 = .008 = .8%

- math -
**Steve**, Wednesday, October 23, 2013 at 5:41am
correct.

good work.

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