Desiree is making guacamole for a party. The recipe she is using for 1/4 cup like juice for every 4 avocados. If she plans to use 1 cup like juice, how many avocados does she need?

If the recipe calls for 1/4 cup lime juice for every 4 avocados, then she needs 1/4 of a cup for every avocado, or 1/4 x 1/4 = 1/16 cup per avocado.

If she plans to use 1 cup of lime juice, then she needs 1/(1/16) = 16 avocados. Answer: \boxed{16}.

To find out how many avocados Desiree needs, we can set up a ratio based on the recipe.

The recipe states that for 1/4 cup of lime juice, 4 avocados are used. Therefore, we have:

1/4 cup lime juice : 4 avocados

We know that Desiree plans to use 1 cup of lime juice. We can set up a proportion to solve for the number of avocados she needs:

(1/4 cup lime juice) / (4 avocados) = (1 cup lime juice) / (x avocados)

Cross multiplying, we get:

(1/4) * (x) = (1) * (4)

Simplifying,

x/4 = 4

Multiplying both sides by 4, we get:

x = 4 * 4

x = 16

Therefore, Desiree needs 16 avocados.

To find out how many avocados Desiree needs, we can set up a proportion based on the given recipe.

Let's assign a variable to represent the number of avocados Desiree needs. Let's call this variable 'x'.

According to the recipe, for every 4 avocados, she needs 1/4 cup of lime juice.

So, the proportion can be written as:
4 avocados / 1/4 cup lime juice = x avocados / 1 cup lime juice

To solve for 'x', we can cross-multiply:
4 avocados * 1 cup lime juice = 1/4 cup lime juice * x avocados

4 avocados = 1/4 cup lime juice * x avocados

To isolate 'x' on one side of the equation, we can divide both sides by 1/4 cup lime juice:
(4 avocados) / (1/4 cup lime juice) = (1/4 cup lime juice * x avocados) / (1/4 cup lime juice)

Simplifying the equation gives us:
4 avocados / (1/4 cup lime juice) = x avocados

To calculate this, we need to divide the number 4 by 1/4. To divide by a fraction, we can multiply by its reciprocal. The reciprocal of 1/4 is 4/1.
Hence, we multiply 4 by 4/1:
4 * 4/1 = 16/1

Therefore, x = 16 avocados.

So, Desiree needs 16 avocados to use 1 cup of lime juice in her guacamole.