SOLUTION: I don't understand how to do this problem, "A landscaping company needs 160 gallons of 30% fertilizer to fertilize the shrubs in an office park. They have in stock 45% fertilizer a
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Question 654637: I don't understand how to do this problem, "A landscaping company needs 160 gallons of 30% fertilizer to fertilize the shrubs in an office park. They have in stock 45% fertilizer and 25% fertilizer. How much of each type should they mix together?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the amount of 45% solution required and then 
must be the amount of 25% percent solution required since the grand total has to be 160 gallons. The amount of pure fertilizer in the 45% solution must then be 
, the amount of pure fertilizer in the 25% solution must be )
, and these two amounts must add up to the amount of pure fertilizer in 160 gallons of 30% solution, namely \ =\ 48)
\ =\ 48)
Solve for , then calculate
John
My calculator said it, I believe it, that settles it
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