A double recipe of cookies calls for 5 cups of flour which proportion could be used to find the amount of flour for a triple recipe?

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Answer 1 · 2016-11-27T15:12:37

You would need 7.5 cups of flour for a triple recipe.

Because 5 couples of flour are needed for a double recipe we can write the ration as #5:2#.

To solve for a triple recipe we can write an equation as:

#5:2 = c:3#

or

#5/2 = c/3#

#3 * 5/2 = 3 * c/3#

#15/2 = c#

#c = 7.5#