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castortr0y [4]
3 years ago
13

Lauren woke up one morning and saw frost on the windows. It was -2°C outside. Later in the day, the frost melted. At 3 p.m. it w

as 9°C outside. Which expression represents the difference between the two temperatures?
Mathematics
1 answer:
Gennadij [26K]3 years ago
8 0

Answer:

9-(-2) or 9+2

Step-by-step explanation:

To find the difference of something, subtract one value from the other. It become addition because two negatives make a positive

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Nine less than twice a number is 49.<br> What is the number?
ratelena [41]

Answer:

29

Step-by-step explanation:

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balandron [24]

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