SOLUTION: A four foot plant receives a treatment of insecticide at a rate of .42oz/foot of 20% active ingredient. A stronger version of the chemical is now available. The new chemical is 70%

Question 735185: A four foot plant receives a treatment of insecticide at a rate of .42oz/foot of 20% active ingredient. A stronger version of the chemical is now available. The new chemical is 70% active ingredient. How much of the 70% ai chemical is need to equal .42oz of the 20% chemical?
Thanks,
Jules

Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
The newer product is 7/2 times stronger than the old pro duct, so you use 2/7 times as much of the newer product. 0.42*(2/7) "ounces"/foot.
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