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Mathematics 33 Online
OpenStudy (anonymous):

The temperature at noon was –12°C. In the next 9 hours, the temperature dropped 8°C. What is the temperature at 9 p.m.? A. –20°C B. –4°C C. 4°C D. 20°C

OpenStudy (anonymous):

@EclipsedStar

OpenStudy (butterflydreamer):

If the temperature at noon was : -12 degrees celcius Then AFTER 9 hours (so noon + 9 hours would be 9pm) the temperatured DROPPED 8 degrees celsius. This means that to find the temperature at 9pm you would simply subtract 8 from -12. So -12 -8 = ?

OpenStudy (anonymous):

4

jimthompson5910 (jim_thompson5910):

think of it like this: you are 12 dollars in debt and you spend 8 more dollars (so you go further into debt)

jimthompson5910 (jim_thompson5910):

that's how I think of -12 - 8

OpenStudy (butterflydreamer):

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