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frank had a 1.5kg bag of potting soil. he used 420g of soil to pot a plant. how many kilograms of soil are left in a bag?

User OnlyDean
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1 Answer

3 votes

use conversion from g to kg


1\operatorname{kg}=1000g

convert the 420g


420g\cdot\frac{1\operatorname{kg}}{1000g}=0.420\operatorname{kg}

substract from the 1.5kg


1.5\operatorname{kg}-0.420\operatorname{kg}=1.08\operatorname{kg}

there are 1.08kg of soil left.

User Rosslebeau
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