kimveselka kimveselka

21-06-2018
Mathematics

contestada

Mrs. Wing spent 2 3/4 hours replacing zippers. If it takes her 1/4 hour to do one, how many zippers did she replace?

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isaac45bahr isaac45bahr

21-06-2018

he replaced 11 zippers, the 2 can be thought of as 2 sets of four quarters or 8/4
and we have 3/4

8/4 + 3/4 = 11/4. if it takes 1/4 hours to replace a zipper, then he replaced 11 zippers

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