a grocery store receives a 180-pound crate containing six 10-pound bags of potatoes and an unknown number of 5-pound bags of potatoes.

There are 24 5-lb bags of potatoes.

Step-by-step explanation:

Total weight: 180 lb

Weight of six 10-lb bags of potatoes: 6 * 10 lb = 60 lb

180 lb - 60 lb = 120 lb

There are 120 lb of 5-lb bags of potatoes.

(120 lb) / (5 lb) = 24

There are 24 5-lb bags of potatoes.