A salsa recipe uses green pepper, onion, and tomato in the extended ratio 1 : 3 : 9. How many cups of onion are needed to make 117 cups of salsa? (1 point) Responses 3 3 27 27 9 9 81

To find the number of cups of onion needed, we need to determine the fraction of the extended ratio that corresponds to onion.

The extended ratio 1:3:9 tells us that there is 1 part of green pepper, 3 parts of onion, and 9 parts of tomato.

To find the total number of parts in the extended ratio, we add the parts together: 1 + 3 + 9 = 13 parts.

To find the fraction of the extended ratio that corresponds to onion, we divide the number of parts of onion (3) by the total number of parts (13): 3/13.

Finally, we multiply the fraction of the extended ratio that corresponds to onion by the total amount of salsa needed (117 cups): (3/13) * 117 = 27 cups of onion.

Therefore, we need 27 cups of onion to make 117 cups of salsa.