120 gallons of 40 ​% fertilizer They have 50 ​% fertilizer and 30 ​% fertilizer. How much of each type should they mix​ together?

Question

A landscaping company needs 120 gallons of 40 % fertilizer to fertilize the shrubs in an office park. They have in stock 50 % fertilizer and 30 % fertilizer. How much of each type should they mix together?

Answer 1

60(.30) + 60(.50) = 120(.40)

18+30 = 48

half of each. 60 gallons of 30% and 60 gallons of 50%