Question 198073: How much soil containing 45% sand do you need
to add to 1 ft³ 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% sand soil needed
In words:
{ft3 sand in final mixture)/(total ft3 of mixture) = 35%
Multiply both sides by
2 ft3 of 45% sand soil is needed
check:
OK
