# Math

If 2 1/3 feet of silver ribbon cost \$.21, how much will 9 feet cost

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1. (2 1/3)/0.21 = 9/x

(7/3)x = 1.89

x = 1.89 / (7/3)

x = 1.89 * (3/7)

x = 5.67/7 = \$0.81

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