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anonymous
 one year ago
At noon the outside temperature was –5°F. By 4 p.m. the same day, the temperature had dropped 13°F.
What was the outside temperature at 4 p.m.?
At 4 p.m. the outside temperature was
°F.
7
anonymous
 one year ago
At noon the outside temperature was –5°F. By 4 p.m. the same day, the temperature had dropped 13°F. What was the outside temperature at 4 p.m.? At 4 p.m. the outside temperature was °F. 7

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no when same sign ,add 513=18 when different sign subtract and keep the sign of larger term. 5+13=+8 +513=8 513=18 5+13=18

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0terms with same sign are added terms with different sign are subtracted. for this question ,it is 18
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