Question

Suppose that 11 inches of wire costs 33 cents. At the same rate, how much (in cents) will 7 inches of wire cost?

Answer 1

7 inch’s of wire would cost 21c

Answer 2

11 in. of wire costs 33 cents

11/33 = 1/3, or 1 inch of wire costs 3 cents

1 x 7 = 7
3 x 7 = 21

7 inches of wire costs 21 cents

hope this helps