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sveticcg [70]
3 years ago
6

Add -7mn +5, 12 mn+2, 9mn -8,- 2mn-3​

Mathematics
2 answers:
lord [1]3 years ago
5 0

Answer:

7+5+12+2+9+2+3=40mn

SVEN [57.7K]3 years ago
4 0

Answer:

4mn - 6

Step-by-step explanation:

expressions => (-7mn) + 5, 9mn - 8, -2mn - 3

In addition, we get..... (-7mn + 9mn - 2mn) + (-3 - 8 + 5)

4mn + (-6)

=> 4mn - 6

Hope it helps.

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bazaltina [42]

Answer: It has no solution.


Step-by-step explanation:

3x - 12 - 4 = 3x + 4 - 4

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3x - 8 - 8 = 3x - 8

we can't subtract 3x-8

Doesn't add up; they need to have one solution or more for it to work.

7 0
3 years ago
Anna is reading a 300-page book. She can read a page in two minutes. If she has finished reading 75 percent of the pages, how ma
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Answer:

150 minutes

Step-by-step explanation:

If Anna read 75% of her 300-page book, then she has already read:

300 × 75%

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If Anna reads 2 minutes per page, then she has

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She has 150 minutes of reading left to finish her book.

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3 0
1 year ago
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anzhelika [568]

Answer:

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Step-by-step explanation:

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Your line is ...

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Step-by-step explanation:

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Step-by-step explanation:

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