SOLUTION: the bottle says to add 4 oz of concentrate to 1 gallon of water but i only need to make mixture with 1 cup of water, how much concentrate should i mix with 1 cup of water?

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Question 1202993: the bottle says to add 4 oz of concentrate to 1 gallon of water but i only need to make mixture with 1 cup of water, how much concentrate should i mix with 1 cup of water?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Start with a proportion and you will have just one unknown quantity to solve.

The given ratio is 4%2F1 ounce_concentrate%2Fgallon_water.

The asked for 1 CUP of water can be handled like so, if you want:
1 gallon is 128 fluid ounces.
8 fluid ounces is 1 cup.
-
1%2Acup%2A8%28fluidounces%2Fcup%29%2A%281%2F128%29%2A%28gallon%2Ffluidounces%29-------8%2F128gallons
0.0625 gallons of water.

Then you could set up a proportion as 4%2F1=w%2F0.0625
and solve for w.

---------------------------------A BETTER WAY--------------------------------------
Recognize or easily find that 1 gallon is 16 cups.
The question description can then be:
the bottle says to add 4 oz of concentrate to 16 cups of water but i only need to make mixture with 1 cup of water, how much concentrate should i mix with 1 cup of water?

Now you can set up a proportion as 4%2F16=Q%2F1.
This means, that Q is 1%2F4 cups.