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Marat540 [252]
3 years ago
12

3.) Bob spent $780 on books. Math books cost $60 per book and science books cost $70. If he

Mathematics
1 answer:
Over [174]3 years ago
8 0
He brought 6 math books and 6 science books
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From Midnight to 6 am the temperature rose 8 degrees C. At 6 am the temperature was -21 degrees C. What was the temperature at m
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Hello!

We know that from midnight to 6am the temperature went up 8° and at 6am it was -21°

To find what it was at midnight we have to work backwards

Since it went up we have to subtract 8 from -21

-21 - 8 = -29

The answer is -29°C

Hope this helps!
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