SOLUTION: A landscaping company needs 160gallons of 23​% fertilizer to fertilize the shrubs in an office park. They have in stock 30​% fertilizer and 20​% fertilizer. How m

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Question 989704: A landscaping company needs 160gallons of 23​% fertilizer to fertilize the shrubs in an office park. They have in stock 30​% fertilizer and 20​% fertilizer. How much of each type should they mix​ together?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
x, volume of the 20%
160-x, volume of the 30%

%2820x%2B30%28160-x%29%29%2F160=23
Mainly you want to be able to form that equation, or if you chose two separate variables, you might get two related equations.

Finding x is arithmetic already learned ( maybe imperfectly mastered, but already studied).