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Step2247 [10]
3 years ago
6

To clean a fish tank, 2/3 cup of disinfectant is needed for every 3 gallons of water. How many cups of disinfectant is needed fo

r 36 gallons of water? (Hint: set up a proportion!)
Mathematics
1 answer:
slamgirl [31]3 years ago
3 0

Answer:

8 cups disinfectant per 36 gallons of water

Step-by-step explanation:

Yes, set up an equation of ratios:

 2/3 cup disinfectant          3 gallons water        1

--------------------------------  =  -------------------------- = -----

                x                          36 gallons water      12

Cross multiplication yields  12(2/3 cup disinfectant) = 1x, so that:

x = 8 cups

8 cups of disinfectant are needed to make a solution involving 36 cups water.

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