lizzyhearts
16.07.2019 •
Mathematics
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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Ответ:
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
Ответ:
Use a compass to measure the length of AB. Draw an arc from point B (or point A) with that distance. Extend line AB through that arc and label the intersection as point C. AC is twice the length of AB.