Answer:
The recipe calls for 9 cups of peanuts, 1.8 cups of chocolate chips, and 7.2 cups of raisins.
Explanation:
Please consider the complete question.
You need to make 36 one-half cup bags of trail mix for a class trip. The recipe calls for peanuts, chocolate chips, and raisins in the extended ratio 5:1:4. How many cups of each item do you need?
Let x represent the number of chocolate chip cups.
The number of peanuts cups would be
.
The number of raisins cups would be
.
The half sups would be

We can represent our given information in an equation as:

Let us solve for x cups.



Therefore, the recipe calls for 1.8 cups of chocolate chips.
The number of peanuts cups would be
.
Therefore, the recipe calls for 9 cups of peanuts.
The number of raisins cups would be
.
Therefore, the recipe calls for 7.2 cups of raisins.