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Answer:

It takes 2 minutes to make 1 coffee.

Step-by-step explanation:

Simplify the ratio. Divide common factors from both the numerator & the denominator:

(30 minutes/15 coffees)/(15/15) = (2 minutes/1 coffee)

It takes 2 minutes to make one coffee, or 2 minutes/1 coffee.

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Answer:2/1

Step-by-step explanation:

30 minutes for 15 coffee

30/15=x/1

30=15x

30/15=15x/15

X=2, so 2 minutes per 1 coffee