Homework Help: math

Posted by lidia on Tuesday, November 8, 2011 at 4:09pm.

Mary bought a roll of ribbon.After using 5/8 of the ribbon to decorate some packages,she had 15ft of the ribbon left.How many feet of ribbon did she buy?

math - Henry, Wednesday, November 9, 2011 at 8:38pm
8/8 - 5/8 = 3/8 Left.

3x/8 = 15,
3x = 120,
X = 40 Ft.

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