Lucía makes braided key chains out of cotton cord. For every 8 feet of cotton cord she has, she can
make 3 braided key chains.
Part A Use a model to represent the relationship
between the feet of cotton cord and the number of
key chains.
Cotton Cord (ft)
8
Key Chains
1
2
3
Part B Use the model to explain how to find the
number of feet of cotton cord Lucía needs to make 5
key chains.