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A number, n, rounded to the nearest 10 is 640. Another number,p, rounded to the nearest 10 is 430. What are the lower nd upper bounds of n+p
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A number, n, rounded to the nearest 10 is 640.

Another number,p, rounded to the nearest 10 is 430.
What are the lower nd upper bounds of n+p

User Shuangwhywhy
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2 Answers

6 votes

Answer:

1080

Explanation:

User Nicholas Magnussen
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7.6k points
4 votes
The lowest each number could be before being rounded would be 635 and 425 since if it’s five or over you round up; the highest each could be is 644 and 434 since if it’s four or under you round down.

635+425= 1060 (lower bound)
644+434=1078 (upper bound)
User Akpp
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