SOLUTION: the safe fluoride to water ration is between 0.7 and 1.2 parts permillion gallons of water. what is the range of fluoride that could be added to 200,000 gallons of water?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: the safe fluoride to water ration is between 0.7 and 1.2 parts permillion gallons of water. what is the range of fluoride that could be added to 200,000 gallons of water?      Log On


   

Question 1080033: the safe fluoride to water ration is between 0.7 and 1.2 parts permillion gallons of water. what is the range of fluoride that could be added to 200,000 gallons of water?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+%28+.7%2F10%5E6+%29+%2A+2%2A10%5E5+
+%28+.7%2A2+%29+%2F+10+
+.07%2A2+
+.14+ gallons
-------------------------
+%28+1.2%2F10%5E6+%29+%2A2%2A10%5E5+
+%28+1.2%2A2+%29+%2F+10+
+.12%2A2+
+.24+ gallons
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The range of flouride that could be added is
.14 gallons to .24 gallons