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lana [24]
3 years ago
10

Use a number line to add and subtract. +7 + (-3)=

Mathematics
1 answer:
Karolina [17]3 years ago
4 0

Answer:

4

Step-by-step explanation:

You have positive number and it is bigger that negative so your result will be positive too:

7-3=4

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a satelite moves at the speed of 27,000 kilometers per hour what 4 number could be the actually speed of the satelite
Anvisha [2.4K]
If the satellite moves at a speed of 27,000 km p/h, your answer depends on the question.

This could be written in an algebraic expression, such as:

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Of course, if this is a 3rd grade level question, I highly doubt they have even gotten started to including the alphabet into math. 

So, I would suggest plugging 4 into X.
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27,000 x 4 = 108,000 km per 4 hours

If her teacher decides to ask why that number, have her explain the question did not make sense so she plugged in a 4 to find an answer to a certain amount of hours. 

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