To determine how many cups of almonds Luis needs when using 3 cups of chocolate chips, we can set up a proportion based on the recipe's ratios.
The recipe states:
- 18 cups of almonds for every 34 cups of chocolate chips.
We can express this as:
\[ \frac{18 \text{ cups of almonds}}{34 \text{ cups of chocolate chips}} = \frac{x \text{ cups of almonds}}{3 \text{ cups of chocolate chips}} \]
Now, we can cross multiply to solve for \( x \):
\[ 18 \cdot 3 = 34 \cdot x \]
\[ 54 = 34x \]
Now, divide both sides by 34:
\[ x = \frac{54}{34} \approx 1.5882 \]
Now, rounding to the nearest tenth:
\[ x \approx 1.6 \]
It looks like there was a mistake in the initial options you provided since none of the answers match. If we round \( 1.6 \) to the nearest option, the appropriate response would be approximately:
1.6 cups
However, keep in mind that none of the options you mentioned provided this as an answer. Can you please review the choices given?