Question 536192: How much soli containg 45% sand do you need to add to 1 ft^3 of soil containing 15% sand in order to make a soil containing 35% sand? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = ft3 of 45% soil = ft3 of sand in 45% soil
given: = ft3 of sand in 1 ft3 of 15% soil
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In words:
( final cubic ft of sand ) / ( final cubic ft of soil ) = 35%
2 ft3 of soil with 45% sand is needed
check:
OK
