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Timothy stated that the sum of 0.9 + (-9/10) was 18/20. What mistake(s) did Timothy make? What is the sum of 0.9 + (-9/10)?​
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Timothy stated that the sum of 0.9 + (-9/10) was 18/20.

What mistake(s) did Timothy make?
What is the sum of 0.9 + (-9/10)?​

User Esteban Feldman
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2 Answers

3 votes
The sum is 0 he added instead of subtracting, you can’t add .9 and /.9 it cancels out
User Pastor
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7.3k points
3 votes

Answer:

18/10

Explanation:

User Nhqazi
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6.6k points
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