Answer:
10 cups of sugar
Explanation:
you can easily make it into a ratio.... ( the amountof sugar needed to make 15 batches of cookies is x)
x/15 = 4/6
when you multiply you get 6x = 4 × 15
6x = 60, then you divide by 6
giving you x=10
10 cups
6 divided by 4 is 1.5 and if you take 15 divided by 1.5 it'd be 10
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