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keke6361
18.12.2019 •
Mathematics
Kristin has 3 2/3 yards of plaid ribbon. she has 2 5/6 yards of polka - dot ribbon. estimate how many yards of ribbon kristin has in all. explain how you know your estimate is reasonable.
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Ответ:
Step-by-step explanation:
Kristin has 3 2/3 yards of plaid ribbon. Converting 3 2/3 yards to improper fraction, it becomes 11/3 yards of plaid ribbon.
She has 2 5/6 yards of polka - dot ribbon. Converting 2 5/6 yards to improper fraction, it becomes 17/6 yards of polka - dot ribbon.
The total number of yards of ribbon that Kristin has would be
11/3 + 17/6 = (22 + 17)/6 = 39/6 yards of ribbon.
Converting to decimal, it becomes 6.5 yards of ribbon. Approximating 6.5 to the nearest yards, it becomes 7 yards. This is because the first digit after the decimal point is 5 and thus, can be rounded up
Ответ:
A
B
C
D
Number 14 is C