Elena is feeding her neighbor’s dogs. Each dog gets 1/2 cup of dog food, and she uses 3 cups of food when she feeds them. How many dogs does her neighbor have?

6

Step-by-step explanation:

1/2 cup = 1 dog

1 cup = 2 dogs

x3 = 6

Elena has five dogs.

Step-by-step explanation:

Each dog eats two-third cups of dog food. A total of three and one-third cups of food is used up

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step-by-step explanation:

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: