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Mnenie [13.5K]
4 years ago
15

When Jill woke up, the temperature was -3 C. By noon the temperature had increased by 8 C.

Mathematics
1 answer:
AlekseyPX4 years ago
3 0
-3+8.

We know that the temperature /was/ -3, so it was 3 under zero. It has /risen/ by 8, meaning we have added 8 degrees to whatever the starting temperature was.

We can find out how much the temperature is right now: it was -3, went through -2, -1, 0, 1, 2, 3, 4, and now its at 5 degrees. Thats risen by 8 degrees, right? And -3+8 is the same as 8-3 (commutative property of addition, since we basically did 8+(-3)) which equals 5, so we know that we got the correct answer. :)



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Answer:

<em>3m • 462.30 = 1,386.90</em>

<em />

Step-by-step explanation:

Let's use the example of 3 months. So, working one month Samantha earns $462.30. Let's say she works part-time for 3 months.

Multiply. 462.30 • 3 = $1,386.9

That means working 3 months, Samantha earns $1,386.90.

Then, just write it in standard form.

<em>3m • 462.30 = 1,386.90</em>

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